V

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does V mean? 

• V (noun)
  The noun V has 4 senses:

1. a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it

2. a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite

3. the cardinal number that is the sum of four and one

4. the 22nd letter of the Roman alphabet

  Familiarity information: V used as a noun is uncommon.

• V (adjective)
  The adjective V has 1 sense:

1. being one more than four

  Familiarity information: V used as an adjective is very rare.

 Dictionary entry details 

• V (noun)

Sense 1

Meaning:

A unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

V; volt

Hypernyms ("V" is a kind of...):

potential unit (a measure of the potential energy of a unit charge at a given point in a circuit relative to a reference point (ground))

Meronyms (parts of "V"):

abvolt (a unit of potential equal to one-hundred-millionth of a volt)

millivolt; mV (a unit of potential equal to one thousandth of a volt)

microvolt (a unit of potential equal to one millionth of a volt)

nanovolt (a unit of potential equal to one billionth of a volt)

picovolt (a unit of potential equal to one trillionth of a volt)

femtovolt (a unit of potential equal to one quadrillionth of a volt (or one thousandth of a nanosecond))

Holonyms ("V" is a part of...):

kilovolt; kV (a unit of potential equal to a thousand volts)

Sense 2

Meaning:

A soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite

Classified under:

Nouns denoting substances

Synonyms:

atomic number 23; V; vanadium

Hypernyms ("V" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Holonyms ("V" is a substance of...):

carnotite (a yellow radioactive mineral; an ore of uranium and radium and vanadium)

vanadinite (a mineral consisting of chloride and vanadate of lead; a source of vanadium)

Sense 3

Meaning:

The cardinal number that is the sum of four and one

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

5; cinque; fin; five; fivesome; Little Phoebe; pentad; Phoebe; quint; quintet; quintuplet; V

Hypernyms ("V" is a kind of...):

digit; figure (one of the elements that collectively form a system of numeration)

Sense 4

Meaning:

The 22nd letter of the Roman alphabet

Classified under:

Nouns denoting communicative processes and contents

Hypernyms ("V" is a kind of...):

alphabetic character; letter; letter of the alphabet (the conventional characters of the alphabet used to represent speech)

Holonyms ("V" is a member of...):

Latin alphabet; Roman alphabet (the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe)

• V (adjective)

Sense 1

Meaning:

Being one more than four

Synonyms:

5; five; v

Similar:

cardinal (being or denoting a numerical quantity but not order)

 Context examples 

Levels I-V describe the layers of skin involved.

(Clark Level Finding, NCI Dictionary)

Cilengitide binds to and inhibits the activities of the alpha(v)beta(3) and alpha(v)beta(5) integrins, thereby inhibiting endothelial cell-cell interactions, endothelial cell-matrix interactions, and angiogenesis.

(Cilengitide, NCI Thesaurus)

Group V: Dying patients with cancer-related pain.

(Cancer Pain Group, NCI Thesaurus)

An alpha(v)beta integrin inhibitor blocks the activity of an endothelial cell-surface expressed alpha(v)integrin, thereby inhibiting endothelial cell-cell interactions, endothelial cell-matrix interactions, and angiogenesis.

(Alpha V Beta Inhibitor, NCI Thesaurus)

This gene is involved in both DNA repair and V(D)J recombination.

(DCLRE1C Gene, NCI Thesaurus)

This NA17 specific antigen, encoded by an intron sequence of N-acetylglucosaminyltransferase V (GnT-V) gene, is expressed in about 50% of melanomas.

(NA17.A2 Peptide Vaccine, NCI Thesaurus)

In a study using endothelial cells it was demonstrated that S1P induces activation of alpha-v and B3 integrins via RhoA.

(Phospholipid Signaling Pathway, NCI Thesaurus/BIOCARTA)

Penicillin V binds to and inactivates penicillin-binding proteins (PBPs), enzymes located on the inner membrane of the bacterial cell wall, resulting in the weakening of the bacterial cell wall and cell lysis.

(Penicillin V Potassium, NCI Thesaurus)

Penicillin V binds to penicillin binding proteins (PBP), the enzymes that catalyze the synthesis of peptidoglycan, which is a critical component of the bacterial cell wall.

(Penicillin V, NCI Thesaurus)

Men in the supplement group also had a higher proportion of gastrointestinal symptoms, compared to the placebo group: abdominal discomfort (6% vs. 3%), nausea (4% vs. 2%) and vomiting (3% vs. 1%).

(Zinc, folic acid supplement does not improve male fertility, National Institutes of Health)