Definitions beginning with V

Valeriana officinalis - permalink - collapse

All > Medicine > Cancer

A plant whose roots are used as a sedative and to treat certain medical conditions. It is being studied as a way to improve sleep in cancer patients undergoing treatment. Also called garden heliotrope, garden valerian, Indian valerian , Mexican valerian, Pacific valerian, valerian, and Valerianae radix.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: garden heliotrope, garden valerian, Indian valerian, Mexican valerian, Pacific valerian, valerian, Valerianae radix

valganciclovir - permalink - collapse

All > Medicine > Cancer

An antiviral agent that is being studied as a treatment for AIDS-related cytomegalovirus. It is changed in the body to ganciclovir.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: epothilone, epothilone B, epothilone D, KOS-862, maribavir, oncology

valid - permalink - collapse

All > Law > Intellectual Property > Patent

Sound and justified; meeting the test of patentability.
Robert M. Hunter, Ph.D. - Cite This Source - This Definition
Browse Related Terms: Bar, Statutory, On Sale, Opinion, Patentability, Opinion, Validity, Patent Term, Presumption of Validity, Statutory Bar, Validity

All > Technology > Programming > Java

A valid XML document, in addition to being well formed, conforms to all the constraints imposed by a DTD. It does not contain any tags that are not permitted by the DTD, and the order of the tags conforms to the DTD's specifications.

Sun Microsystems - Cite This Source - This Definition
Browse Related Terms: Error, fatal error, kXML, Namespace, parser, validating parser, warning, well-formed

Validate - permalink - collapse

All > Law > E-Discovery

In the context of this document, confirm or ensure well grounded logic, and true and accurate determinations.
AmDoc - Cite This Source - This Definition
Browse Related Terms: Extensible Markup Language (XML), False Positive/Negative, html" (Hypertext Markup Language), Java, Natural Language Search, SGML/HyTime, SQL (Structured Query Language), Standard Generalized Markup Language (SGML), XML

validating parser - permalink - collapse

All > Technology > Programming > Java

A parser that ensures that an XML document is valid in addition to being well formed. See also parser.

Sun Microsystems - Cite This Source - This Definition
Browse Related Terms: Error, fatal error, kXML, Namespace, parser, valid, warning, well-formed

Validation - permalink - collapse

All > Technology > Defense

Confirmation that the processes and outputs from a test resource parallel real world processes and are realistically sensitive to change in the environment, tactical situation, system design, tactics, and threat.
DoD Missile Defense Agency - Cite This Source - This Definition
Browse Related Terms: Abacus, ACTE, Big Crow, Deployment Testing, EVPA/TEVS, JETTA, Penetration Testing, PTE, Qualification Test, Security Testing, Software Test Environment, TESSE, TEVS

All > Technology > Security

The process of demonstrating that the system under consideration meets in all respects the specification of that system.
NIST - Cite This Source - This Definition
Browse Related Terms: ANSI (American National Standards Institute), Cryptographic Module Validation Program (CMVP), Federal Information Processing Standard (FIPS), FIPS, INCITS (International Committee for Information Technology Standards), ISO (International Organization for Standardization), National Information Assurance Partnership (NIAP), NIST (National Institute of Standards and Technology)

All > Technology > Telecommunications

1. Tests to determine whether an implemented system fulfills its requirements. 2. The checking of data for correctness or for compliance with applicable standards, rules, and conventions. 3. [The] process of applying specialized security test and evaluation procedures, tools, and equipment needed to establish acceptance for joint usage of an information system (IS) by one or more departments or agencies and their contractors. [INFOSEC-99] Note: This action will include, as necessary, final development, evaluation, and testing, preparatory to acceptance by senior security test and evaluation staff specialists. [NIS] 4. In universal personal telecommunications, the process of verifying that a user or terminal is authorized to access UPT services. 5. The checking of a representation of a system or part of a system for conformance with its requirements [CESG]. 6. The process of evaluating a ported application, software, or system to ensure compliance with requirements [POSIX.0].
ATIS - Cite This Source - This Definition
Browse Related Terms: commercial licensed evaluation facility, Deliverable, evaluation unit, Evaluator, evaluator actions, information technology security evaluation criteria (ITSEC), orange book, Penetration Testing, performance evaluation, prototype, target of evaluation

validation system - permalink - collapse

All > Technology > Telecommunications

The system containing the data base information to be used in validation of the telecommunications charge card or billed number screening data. [T1.230-1992]
ATIS - Cite This Source - This Definition
Browse Related Terms: card validation, magnetic card, PIN

Valid Data Element - permalink - collapse

All > Technology > Security

A payload, an associated data string, or a nonce that satisfies the restrictions of the formatting function.
NIST - Cite This Source - This Definition
Browse Related Terms: Approved, Approved Security Function, Data Element, Wavelet Scalar Quantization (WSQ)

Validity - permalink - collapse

All > Law > Intellectual Property > Patent

The issue of whether a patent is valid. See Valid.
Robert M. Hunter, Ph.D. - Cite This Source - This Definition
Browse Related Terms: Bar, Statutory, On Sale, Opinion, Patentability, Opinion, Validity, Patent Term, Presumption of Validity, Statutory Bar, valid

Valid Time - permalink - collapse

All > Science > Weather

The period of time during which a forecast or warning, until it is updated or superseded by a new forecast issuance, is in effect.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Forecast valid for, Last Update, MAXT, Medium Range, Stair Stepping

Valid Time Event Code - permalink - collapse

All > Science > Weather

(VTEC) - The Valid Time Event Code (VTEC) always is used in conjunction with, and provides supplementary information to, the Universal Geographic Code (UGC), to further aid in the automated delivery of National Weather Service text products to users. The VTEC is included in many event driven or non-routine products and in some routine Marine forecasts. The VTEC provides information on the event, while the UGC describes the affected geographic area.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: FTPMAIL, NESDIS, UGC, Universal Geographic Code, VTEC

Valium - permalink - collapse

All > Medicine > Cancer

(VAL-ee-um) A drug used to treat mild to moderate anxiety and tension and to relax muscles. It is a type of benzodiazepine. Also called diazepam.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: diazepam, midazolam, midazolam hydrochloride, Versed

Valley Exit Jet - permalink - collapse

All > Science > Weather

A strong elevated down-valley air current issuing from a valley above its intersection with the adjacent plain.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Barrier Jet, Inflow Jets, Jet, Jet Max, Jet Streak, Jet Wind Speed Profile, STJ, Subtropical Jet, TROP, Tropopause Jet, ULJ

Valley Volume Effect - permalink - collapse

All > Science > Weather

The reduction in volume of a valley (or basin) as compared to an equal depth volume with a horizontal floor. Because the valley volume is smaller, equivalent heat fluxes will cause larger changes in temperature in the valley volume than in the flat-floor volume.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Isentropic Surface, Isodrosotherm, Isopleth, Isotherm, Subtle Heavy Rainfall Signature

VA loan - permalink - collapse

All > Business > Real Estate

valproic acid - permalink - collapse

All > Medicine > Cancer

(val-PROH-ik A-sid) A drug used to treat epileptic seizures and bipolar disorder and to prevent migraine headaches. It is also being studied in the treatment of Kaposi sarcoma. It is a type of anticonvulsant, antimaniacal, and migraine headache prophylactic.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: Aldara, aminolevulinic acid, aminolevulinic acid hydrochloride, imiquimod, Levulan, Levulan Kerastick

valrubicin - permalink - collapse

All > Medicine > Cancer

(val-ROO-bih-SIN) A drug used to treat bladder cancer that does not respond to BCG (Bacillus Calmette Guerin). It is an anthracycline and is a type of antitumor antibiotic. Also called AD 32.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: 4-demethoxydaunorubicin, AD 32, anthracycline, daunorubicin hydrochloride, Ellence, epirubicin, epirubicin hydrochloride

Valuation - permalink - collapse

All > Business > Finance > Personal Finance

Valuation is the process of estimating the value, or worth, of an asset or investment.
Sometimes it means determining a fixed amount, such as establishing the value of your estate after your death. Other times, valuation means estimating future worth.
For example, fundamental stock analysts estimate the outlook for a company's stock by looking at data such as the stock's price-to-earnings (P/E), price-to-sales, and price-to-book, or net asset value, ratios.
In general, a company with a high P/E is considered overvalued, and a company with a low P/E is considered undervalued.

Yahoo Finance - Cite This Source - This Definition
Browse Related Terms: Debt-to-equity ratio, Dividend payout ratio, Forward price-to-earnings ratio, Haircut, Multiple, Overvaluation, Payout ratio, Price-to-book ratio, Price-to-cash flow, Price-to-earnings ratio (P/E), Price-to-sales ratio, risk ratio, screen, Sharpe ratio

All > Technology > Records Management

See appraisal.
State of California - Cite This Source - This Definition
determination, based on fair market prices, of the monetary value of documents
ARMA - Cite This Source - This Definition
Browse Related Terms: Appraisal, docket, evaluation, evidential integrity, Inactive Record, Minute book, records appraisal, working paper

Value - permalink - collapse

All > Business > Finance > Personal Finance

In determining the monetary equivalent for assets and gifts, value is a good faith estimate of the fair market value if the exact value is neither known nor easily obtainable by the reporting individual without undue hardship or expense. In the case of any interest in property, see the alternative valuation options in 5 C.F.R. 2634.301(e). For gifts and reimbursements, see 5 C.F.R. § 2634.304(e) & 5 CFR 2634.904(g)(4).
US Army Financial Disclosure Management - Cite This Source - This Definition
Browse Related Terms: Bear spread, Bull spread, derivative, In-the-money, Options chain, Out-of-the-money, Strangle, Underlying instrument

All > Recreation > Games > Poker

As in "bet for value." This means that you would actually like your opponents to call your bet (as opposed to a bluff). Generally it's because you have the best hand. However, it can also be a draw that, given enough callers, has a positive expectation.
Lee Jones - Cite This Source - This Definition
Browse Related Terms: Backdoor, Come Hand, Draw, Draw Dead, Fast, Free Card, Implied Odds, Pot Odds, Price, Runner, Semi-Bluff

All > Technology > Programming > Perl

An actual piece of data, in contrast to all the variables, references, keys, indexes, operators, and whatnot that you need to access the value.
Perl - Cite This Source - This Definition
Browse Related Terms: associative array, bucket, DBM, Hash, hash table, Indexing, key