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v 音标拼音: [v'i] n. 字母 v字母 vv adj 1: being one more than four [ synonym: { five}, { 5}, { v}] n 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 [ synonym: { volt}, { V}] 2: a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite [ synonym: { vanadium}, { V}, { atomic number 23}] 3: the cardinal number that is the sum of four and one [ synonym: { five}, { 5}, { V}, { cinque}, { quint}, { quintet}, { fivesome}, { quintuplet}, { pentad}, { fin}, { Phoebe}, { Little Phoebe}] 4: the 22nd letter of the Roman alphabet [ synonym: { V}, { v}] V \ V\ ( v[= e]). 1. V, the twenty- second letter of the English alphabet, is a vocal consonant. V and U are only varieties of the same character, U being the cursive form, while V is better adapted for engraving, as in stone. The two letters were formerly used indiscriminately, and till a comparatively recent date words containing them were often classed together in dictionaries and other books of reference ( see { U}). The letter V is from the Latin alphabet, where it was used both as a consonant ( about like English w) and as a vowel. The Latin derives it from a form ( V) of the Greek vowel [ Upsilon] ( see { Y}), this Greek letter being either from the same Semitic letter as the digamma F ( see { F}), or else added by the Greeks to the alphabet which they took from the Semitic. Etymologically v is most nearly related to u, w, f, b, p; as in vine, wine; avoirdupois, habit, have; safe, save; trover, troubadour, trope. See U, F, etc. [ 1913 Webster] See Guide to Pronunciation, [ sect] 265; also [ sect][ sect] 155, 169, 178- 179, etc. [ 1913 Webster] 2. As a numeral, V stands for five, in English and Latin. [ 1913 Webster] |
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