Van″ish (văn″ĭsh), n.(Phon.) The brief terminal part of a vowel or vocal element, differing more or less in quality from the main part; as, a as in ale ordinarily ends with a vanish of i as in ill, o as in old with a vanish of oo as in foot. Rush.
☞ The vanish is included by Mr. Bell under the general term glide.