资料来源 : pyDict

母音母音的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Vowel \Vow"el\, n. [F. voyelle, or an OF. form without y, L.
   vocalis (sc. littera), from vocalis sounding, from vox,
   vocis, a voice, sound. See {Vocal}.] (Phon.)
   A vocal, or sometimes a whispered, sound modified by
   resonance in the oral passage, the peculiar resonance in each
   case giving to each several vowel its distinctive character
   or quality as a sound of speech; -- distinguished from a
   {consonant} in that the latter, whether made with or without
   vocality, derives its character in every case from some kind
   of obstructive action by the mouth organs. Also, a letter or
   character which represents such a sound. See Guide to
   Pronunciation, [sect][sect] 5, 146-149.

   Note: In the English language, the written vowels are a, e,
         i, o, u, and sometimes w and y. The spoken vowels are
         much more numerous.

   {Close vowel}. See under {Close}, a.

   {Vowel point}. See under {Point}, n.

Vowel \Vow"el\, a.
   Of or pertaining to a vowel; vocal.

资料来源 : WordNet®

vowel
     n 1: a speech sound made with the vocal tract open [syn: {vowel
          sound}] [ant: {consonant}]
     2: a letter of the alphabet standing for a spoken vowel