parasitic(PAYR-uh-SIH-tik) Having to do with or being a parasite (an animal or plant that gets nutrients by living on or in an organism of another species).
parasitic elementOf an antenna, a directive element that is not connected to a radio transmitter or receiver either directly or via a feeder, but is coupled to the driven…
parasitic emissionIn a communications system in which one or more electromagnetic sources are used, electromagnetic radiation--such as lightwaves, radio waves, microwaves…
ParasitismThe closee association of two or more dissimilar organisms where the association is harmful to at least one. See Commensalism, Parasitism, Symbiosis.
parasomnia(PAYR-uh-SOM-nee-ah) An abnormal disruption of sleep, such as sleep walking, sleep talking, nightmares, bedwetting, sleep apnea (problems with breathing…
parasporal crystalTightly packaged insect pro-toxin molecules that are produced by strains of Bacillus thuringiensis during the formation of resting spores.
parasympathetic nervous system(PA-ruh-SIM-puh-THEH-tik NER-vus SIS-tem) The part of the nervous system that slows the heart, dilates blood vessels, decreases pupil size, increases…
parathormone(PAYR-uh-THOR-mone) A substance made by the parathyroid gland that helps the body store and use calcium.
parathyrin(PAYR-uh-THY-rin) A substance made by the parathyroid gland that helps the body store and use calcium.
parathyroid cancer(PAYR-uh-THY-royd KAN-ser) A rare cancer that forms in tissues of one or more of the parathyroid glands (four pea-sized glands in the neck that make…
parathyroid gland(PAYR-uh-THY-royd...) One of four pea-sized glands found on the surface of the thyroid.
parathyroid hormone(PAYR-uh-THY-royd HOR-mone) A substance made by the parathyroid gland that helps the body store and use calcium.
parathyroidectomy(PAYR-uh-THY-roy-DEK-toh-mee) Surgery to remove one or more parathyroid glands (four pea-sized organs found on the thyroid).
paravirtualizationPara-virtualization uses a special kernel, sometimes referred to as the xen kernel or kernel-xen to virtualized another environment while using the hosts…
paravirtualized driversPara-virtualized drivers are device drivers that operate on fully virtualized linux guests.
paraxial rayIn optical systems, a ray that is close to and nearly parallel with the optical axis.
ParcelA volume of air small enough to contain uniform distribution of its meteorological properties and large enough to remain relatively self-contained and…
parcel dataData representing the geographic limits of property ownership as defined by some legal instrument.
Parcel LotLand often not residing within a square, most of which were created in 1905 by Act of Congress.
PARCSPerimeter Acquisition Radar and Attack Characterization System.
PardonAn act of grace from governing power which mitigates punishment and restores rights and privileges forfeited on account of the offense.
PareidoliaAlso known as “matrixing,” it is the brain’s perception of a meaningful pattern within random sounds or images.
parenchyma(pah-REN-kih-ma) The essential or functional elements of an organ.
parent documentA document whose values are inherited by another document (the child document).
Parent ObjectAn object in which another object resides. For example, a folder is a parent object in which a file, or child object, resides.
Parent OrganizationThe organization that is applying for the Personal Identity Verification card on behalf of an applicant.
parent partitionThe partition that manages the virtual machines.
Parent-child RelationshipsParent-child relationships is a term used in e-discovery to describe a chain of documents that stems from a single e-mail or storage folder.
Parent-child trust relationshipThe two-way, transitive trust relationship that is established when you add a domain to an Active Directory tree.
parenteral nutritionA form of nutrition that is delivered into a vein. Parenteral nutrition does not use the digestive system.
paresthesia(par-es-THEE-zhuh) An abnormal touch sensation, such as burning or prickling, that occurs without an outside stimulus.
ParhelionThe scientific name for sun dogs. Either of two colored luminous spots that appear at roughly 22 degrees on both sides of the sun at the same elevation.
paricalcitol(par-i-KAL-si-tol) A substance that is being used to treat overactive parathyroid glands in patients with kidney failure.
parietal pericardiumThe outer layer of the pericardium, which is a thin sac of tissue that surrounds the heart.
parietal peritoneum(puh-RY-uh-tul PAYR-ih-toh-NEE-um) The layers of tissue that line the abdominal wall and the pelvic cavity.
ParityA form of data protection used by RAID level 5 to recreate the data of a failed drive in a disk array.
parity bitAn extra bit that can be added to a group of "0" bits and "1" bits to make the parity of the group odd or even.
parity checkA test that determines whether the number of ones or zeros in an array of binary digits is odd or even.
parity checkingA method of data verification. Parity information is used to reconstruct data.
parity diskDisk on which parity information is stored for a RAID group.
Parity PaymentPart of the NCUA's guarantee obligation on the NGNs that represents the excess of the unpaid Note Principal Balance (after related payments have been…
parking partyRepresentative of the served user who parks a call via "call park."
Parkinson disease(PAR-kin-sun dih-ZEEZ) A progressive disorder of the nervous system marked by muscle tremors, muscle rigidity, decreased mobility, stooped posture, slow…
Parkinson's diseaseA common progressive neurological disorder that results from degeneration of nerve cells in a region of the brain that controls movement.
parliamentarianThe Parliamentarian is the Senate's advisor on the interpretation of its rules and procedures.
parliamentary inquiryA question from the floor to the Presiding Officer by a Senator requesting a clarification of the procedural situation on the floor.
Parol evidenceOral or verbal evidence; evidence given by word of mouth in court.
ParoleSupervised release of a prisoner from imprisonment on certain prescribed conditions which entitle him to relief from a prison sentence.
parotid gland cancer(puh-RAH-tid ...) Cancer that forms in a parotid gland, the largest of the salivary glands, which make saliva and release it into the mouth.
parotidectomy(pa-RAH-tih-DEK-toh-mee) Surgery to remove all or part of the parotid gland (a large salivary gland located in front of and just below the ear).
paroxetine hydrochloride(puh-ROX-uh-teen HY-droh-KLOR-ide) A drug used to treat depression and anxiety disorders. It is a type of selective serotonin reuptake inhibitor (SSRI).
ParoxysmA sudden attack or increase in intensity of a symptom, usually occurring in intervals.
paroxysmal nocturnal hemoglobinuria(puh-rahk-SIZ-mul nok-TUR-nul HEE-moh-gloh-bih-NOO-ree-uh) A rare disorder in which red blood cells are easily destroyed by certain immune system proteins.
PARPROPeacetime Application of Reconnaissance Programs.
Parr, parr marksSmall juvenile of the trout or salmon family. Characterized by parr marks, which are pronounced, wide, vertical bars on the sides of these fish until they…
PARSAbbreviation for paging and radiotelephone service. A radio service in which common carriers are authorized to offer and provide paging and radiotelephone…
ParsecA unit of distance, derived from a technique of finding distances to astronomical objects, called parallax. 3.1 x 1013 km or 3.26 light years.
parsed entityA general entity that contains XML and therefore is parsed when inserted into the XML document, as opposed to an unparsed entity.
parserA module that reads in XML data from an input source and breaks it into chunks so that your program knows when it is working with a tag, an attribute, or…
Parshall Flume (Improved Venturi Flume)A flume with a specially shaped open-channel flow section that may be installed in a drainage lateral or ditch to measure the rate of flow of water.
parsingUsually applied to the action of a compiler in analyzing a program source file for syntax errors.
partIn a multipart upload request, each part is a contiguous portion of the object's data.
part 68The section of Title 47 of the Code of Federal Regulations governing (a) the direct connection of telecommunications equipment and customer premises…
Part AThe part of the Ryan White HIV/AIDS Program (formerly, Title I) that provides emergency assistance to localities (EMAs) disproportionately affected by the…
Part BThe part of the Ryan White HIV/AIDS Program (formerly, Title II) that provides funds to States and territories for primary health care (including HIV…
Part CThe part of the Ryan White HIV/AIDS Program (formerly, Title III) that supports outpatient primary medical care and early intervention services to PLWHA…
Part DThe part of the Ryan White HIV/AIDS Program (formerly, Title IV) that supports coordinated services and access to research for children, youth, and women…
Part F (Community Based Dental Partnership Program)The program within the HRSA HIV/AIDS Bureau's Division of Community Based Programs that delivers HIV/AIDS dental care while simultaneously training dental…
Part F (HIV/AIDS Dental Reimbursement Program)The program within the HRSA HIV/AIDS Bureau's Division of Community Based Programs that assists with uncompensated costs incurred in providing oral health…
parthenocarpyThe development of fruit without fertilization.
ParthenogenesisProduction of an embryo from an unfertilized egg.
Partial Beam FillingA limitation of the rainfall estimation techniques used by NEXRAD. At far ranges from the radar, a storm may occupy only a portion of the radar beam…
Partial ClaimA loss mitigation option offered by the FHA that allows a borrower, with help from a lender, to get an interest-free loan from HUD to bring their mortgage…
Partial cutA harvest method in which portions of a stand of timber are cut during a number of entries over time. Compare precommercial thinning.
partial cystectomy(PAR-shul sis-TEK-toh-mee) Surgery to remove part of the bladder (the organ that holds urine). Also called segmental cystectomy.
partial digestIncomplete reaction of a restriction enzyme with DNA, such that only a proportion of the target sites are cleaved.
partial hysterectomy(PAR-shul HIS-teh-REK-toh-mee) Surgery to remove the uterus, but not the cervix. Also called subtotal hysterectomy.
partial laryngectomy(PAR-shul LA-rin-JEK-toh-mee) An operation to remove part of the larynx (voice box).
partial mastectomy(PAR-shul ma-STEK-toh-mee) The removal of cancer as well as some of the breast tissue around the tumor and the lining over the chest muscles below the…
Partial Mission CapableMaterial condition of an aircraft or training device indicating that it can perform at least one, but not all, of its missions. Also called PMC.
partial nephrectomy(PAR-shul neh-FREK-toh-mee) Surgery to remove part of one kidney or a kidney tumor, but not an entire kidney.
partial oophorectomy(PAR-shul oh-oh-foh-REK-toh-mee) Surgery to remove part of one ovary or part of both ovaries.
Partial PaymentA payment that is less than the scheduled monthly payment on a mortgage loan.
partial remissionA decrease in the size of a tumor, or in the extent of cancer in the body, in response to treatment. Also called partial response.
partial response(PAR-shul reh-SPONTS) A decrease in the size of a tumor, or in the extent of cancer in the body, in response to treatment. Also called partial remission.
partial vulvectomy(PAR-shul vul-VEK-toh-mee) Surgery to remove most, but not all, of the vulva (the external female genital organs, including the clitoris, vaginal lips…
partial-dial conditionA condition in which outpulsing has commenced, insufficient information has been received by the customer installation (CI) to process the call and no…
Partial-Duration Flood SeriesA list of all flood peaks that exceed a chosen base stage or discharge, regardless of the number of peaks occurring in a year.
Participating CommunityA community for which the Federal Emergency Management Agency (FEMA) has authorized the sale of flood insurance under the National Flood Insurance Program…