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f 音標拼音: ['ɛf] n. 字母 f字母 fF n 1: a degree on the Fahrenheit scale of temperature [ synonym: { degree Fahrenheit}, { F}] 2: a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite [ synonym: { fluorine}, { F}, { atomic number 9}] 3: the capacitance of a capacitor that has an equal and opposite charge of 1 coulomb on each plate and a voltage difference of 1 volt between the plates [ synonym: { farad}, { F}] 4: the 6th letter of the Roman alphabet [ synonym: { F}, { f}] F \ F\ ([ e^] f). 1. F is the sixth letter of the English alphabet, and a nonvocal consonant. Its form and sound are from the Latin. The Latin borrowed the form from the Greek digamma ?, which probably had the value of English w consonant. The form and value of Greek letter came from the Ph[ oe] nician, the ultimate source being probably Egyptian. Etymologically f is most closely related to p, k, v, and b; as in E. five, Gr. pe` nte; E. wolf, L. lupus, Gr. ly` kos; E. fox, vixen; fragile, break; fruit, brook, v. t.; E. bear, L. ferre. See Guide to Pronunciation, [ sect][ sect] 178, 179, 188, 198, 230. [ 1913 Webster] 2. ( Mus.) The name of the fourth tone of the model scale, or scale of C. F sharp ( F [ sharp]) is a tone intermediate between F and G. [ 1913 Webster] { F clef}, the bass clef. See under { Clef}. [ 1913 Webster] |
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