labialize(redirected from labializes)Also found in: Thesaurus, Medical, Encyclopedia. la·bi·al·ize (lā′bē-ə-līz′) tr.v. la·bi·al·ized, la·bi·al·iz·ing, la·bi·al·iz·es To pronounce (a speech sound) with the lips touching , nearly touching, or pursed. la′...