RMP-7A substance that is being studied for its ability to help other drugs reach the brain. It belongs to the family of drugs called bradykinin agonists.
RMS(1) Remote Manipulator System. (2) Root Mean Square.
RMS (Record Management System)The Record Management System (RMS) is a simple record-oriented database that allows a MIDlet to persistently store information and retrieve it later.
RNAOne of the two types of nucleic acids found in all cells. In the cell, RNA is made from DNA (the other type of nucleic acid), and proteins are made from…
RNA (Ribonucleic acid)An organic acid composed of re- peating nucleotide units of adenine, guanine, cytosine, and uracil, whose ribose components are linked by phosphodiester…
RNA editingPost-transcriptional processes that alter the information encoded in RNA s.
RNA polymeraseTranscribes RNA from a DNA template. (See Polymerase, RNA.)
ROReceiving Office - the national Office or the intergovernmental organization with which an international application has been filed.
Ro 31-7453A substance that is being studied in the treatment of cancer. It may prevent cancer cells from dividing.
Ro 50-3821A substance that is being studied in the treatment of anemia in patients who are receiving chemotherapy.
roamingIn cellular technology (mobile telephone technology), the use of a wireless telephone outside a specified tariffed geographic area defined by the service…
RobberyFelonious taking of another's property, from his or her person or immediate presence and against his or her will, by means of force or fear. See larceny.
RobotAny browser program which follows hypertext links and accesses web pages but is not directly under human control...
Robots Exclusion ProtocolA protocol that allows Web site administrators to indicate to visiting robots which parts of their site should not be visited by the robot.
Robots.txtA text file stored in the top level directory of a web site to deny access by robots to certain pages or sub-directories of the site.
RobustUsed in describing a system; indicates its ability to endure and perform its mission against a responsive threat.
Robustness(1) The ability to produce correct results despite input errors. (2) The existence of coordinated, multiple capabilities that perform the same broad…
ROC (Raid on Chip)Single chip that provides hardware RAID protection by combining features and functionality that previously required separate components; a single chip…
RockA player who plays very tight, not very creatively. He raises only with the best hands.
Rock anchorA steel rod or cable placed in a hole drilled in rock, held in position by grout, mechanical means, or both.
Rock artImages on rock surfaces. There are two types of rock art: pictographs, which are drawn or painted onto the surface, and petroglyphs, which are pecked…
Rock BinA container that holds rock used as the thermal mass to store solar energy in a solar heating system.
Rock boltA steel rod placed in a hole drilled in rock, held in position by grout, mechanical means, or both. A rock bolt can be pretensioned.
Rock excavationHard and firm parts of the earth's crust which is dug out and removed from a particular site or area, see rock.
Rock Fill DamAn embankment dam in which more than 50% fo the total volume comprises compacted or dumped pervious natural or crushed rock.
Rock fragmentDetached pieces of rock which generally are not rounded.
Rock outcropThe part of a rock formation that appears above the surface of the surrounding land.
Rock WoolA type of insulation made from virgin basalt, an igneous rock, and spun into loose fill or a batt. It is fire resistant and helps with soundproofing.
Rock-facedMasonry treated with a rough surface that retains or simulates the irregular texture of natural stone.
RocketsondeA type of radiosonde that is shot into the atmosphere by a rocket, allowing it to collect data during its parachute descent from a higher position in the…
Rockfill DamAn embankment dam in which more than 50 percent of the total volume is comprised of compacted or dumped cobbles, boulders, rock fragments, or quarried…
RODA graduated staff used in determining the difference in elevation between two points.
RODCA domain controller that has read-only copies of directory partitions.
RODC filtered attribute setA dynamically configured set of attributes that are not replicated to a read-only domain controller (RODC).
rofecoxib(ROH-feh-COK-sib) A drug that was being used for pain relief and was being studied for its ability to prevent cancer and to block the growth of new blood…
Rogue WaveCommonly used term by mariners of a wave of an unexpected wave of much greater height or steepness than other waves in the prevailing sea or swell system.
rolgenes A family of genes, present on the Ri plasmid of Agrobacterium rhizogenes, that when transferred to a plant upon infection by the bacterium, induce…
role (development)The function performed by a party in the development and deployment phases of an application developed using J2EE technology.
role (security)An abstract logical grouping of users that is defined by the application assembler.
role mappingThe process of associating the groups or principals (or both), recognized by the container with security roles specified in the deployment descriptor.
role serviceA software program or logical collection of software programs that provide the functionality of a role.
rolesLogical sets of permissions, similar to groups, which determine access to documents in the workspace.
RollThis means that you should roll a random number to determine who has the right to get an item. For example: /random 1-100
roll backTo cancel any changes to a database made during the current transaction. Compare with commit.
Roll cageThe steel tubing inside the race car's interior. Designed to protect the driver from impacts or rollovers, the roll cage must meet strict NASCAR safety…
roll call voteA vote in which each Senator votes "yea" or "nay" as his or her name is called by the Clerk, so that the names of Senators voting on each side are…
Roll CloudA low, horizontal tube-shaped arcus cloud associated with a thunderstorm gust front (or sometimes with a cold front).
Roll-down gateA security gate with a mechanism that allows it to roll up and down.
rollbackA return to a previous state that follows the failure to create an object, such as AWS CloudFormation stack.
rollcastA type of fly-casting technique in which the line is not cast above the water, but instead rolled over with the line lying on the water.
Rolled Earth Dam (Earth Fill or Earth Dam)An embankment dam in which more than 50% of the total volume is formed of compacted fine-grained material obtained from a borrow area.
Rolled fill damAn embankment dam of earth or rock in which the material is placed in layers and compacted by the use of rollers or rolling equipment.
Rolled Filled DamAn embankment dam of earth or rock in which the material is placed in layers and compacted by using rollers or rolling equipment. Same as Rockfill dam.
Rolled FingerprintsAn image that includes fingerprint data from nail to nail, obtained by �rolling� the finger across a sensor, as illustrated below.
Roller gateA gate rolled up or down inclined supporting rails by a hoist through sprocket chains around the ends of a cylinder.
Roller-compacted concrete damA concrete gravity dam constructed by the use of a dry mix concrete transported by conventional construction equipment and compacted by rolling, usually…
RollingA method of compacting soil using a sheepsfoot roller or a smooth drum roller.
Rolling blackoutsA controlled and temporary interruption of electrical service. They are necessary when a utility is unable to meet heavy peak demands because of an…
rolling disasterA second disaster that occurs before recovering from a previous disaster, e.g. while data is being synchronized between two data centers after a disaster…
Rolling Disposal Request (RM6)A disposal request form implemented with the intent to provide an agency with the State Record Committee’s annual revolving approval to dispose of…
RolloverIf you move your assets from one investment to another, it's called a rollover.
Rollover IRAA rollover IRA is an individual retirement annuity you create with tax-deferred assets you move from an employer sponsored retirement plan to a…
ROMRead Only Memory - the hardware in a computer that that can be read but not written to.
ROM (Read Only Memory)Random memory which can be read but not written or changed. Also, hardware, usually a chip, within a computer containing programming necessary for…
Roman chamomile(ROH-mun KA-muh-mile) A type of chamomile plant with daisy-like white flowers that is found in Europe, North America, and Argentina.
ROMB (RAID on Motherboard)A solution that is extremely cost-effective and compact in its design because all of the components of the RAID device are included on the motherboard.
romidepsin(ROH-mih-DEP-sin) A substance being studied in the treatment of cancer. Romidepsin is a type of depsipeptide and histone deacetylase inhibitor.
romiplostim(roh-mih-PLOH-stim) A drug used to treat patients with immune thrombocytopenic purpura (ITP) who do not get better with other forms of treatment.
RoofA building element that provides protection against the sun, wind, and precipitation.
Roof flapsA key safety feature in NASCAR race cars, the flaps are placed on the roof of the car and pop up when a car is running backwards to keep the car on the…
Roof PlanA drawing showing the arrangement of fixtures on the roof
Roof PondA solar energy collection device consisting of containers of water located on a roof that absorb solar energy during the day so that the heat can be used…
Roof VentilatorA stationary or rotating vent used to ventilate attics or cathedral ceilings; usually made of galvanized steel, or polypropylene.
roofing filterA low-pass filter used to reduce unwanted higher frequencies.
Rooftop additionA construction or an installation of mechanical equipment and/or occupiable space situated on any structure's roof.