obviator


ob·vi·ate

O0017800 (ŏb′vē-āt′)tr.v. ob·vi·at·ed, ob·vi·at·ing, ob·vi·ates To keep from happening or render unnecessary. See Synonyms at prevent.
[Latin obviāre, obviāt-, to hinder, from obvius, in the way; see obvious.]
ob′vi·a′tion n.ob′vi·a′tor n.

obviator

(ˈɒbvaɪˌeɪtɔː) na person who obviates