Definition of schwas:
(n) :
(phonetics) An indeterminate central vowel sound as the "a" in "about", represented as /ə/ in IPA.
(n) :
The name of the Latin-script letter Ə/ə.
(v) :
(phonetics, of a vowel sound, rare) To be reduced to schwa.
(n) :
Alternative form of shva. [A Hebrew nikud vowel sign written as two vertical dots beneath a letter, in Israeli Hebrew indicating either the phoneme /e/ or the complete absence of a vowel.]