[f. ANNIHILATE v. + -OR, as if a. L. *annihilātor.] He who, or that which, annihilates or utterly destroys.
1698. Congreve, Way of World, IV. ix. (Jod.). Witwood, you are an annihilator of sense.
1841. Hor. Smith, Moneyed Man, III. xi. 325. Steam the uniter of nations, the annihilator of distance.
¶ Occas. in comb., as smoke-annihilator, etc.