O*me"ga (?), n. [NL., fr. Gr. , i.e., the great or long o. Cf. Mickle.]
1.
The last letter of the Greek alphabet. See Alpha.
2.
The last; the end; hence, death.
"Omega! thou art Lord," they said.
Tennyson.
Alpha and Omega, the beginning and the ending; hence, the chief, the whole.
Rev. i. 8.
The alpha and omega of science.
Sir J. Herschel.
© Webster 1913.