Entry 1 sense Webster, 1913 Specificate /(spē̇*sĭf"ĭ*kāt)/ · Spe·cif·i·cate · IPA 01 v. t. To show, mark, or designate the species, or the distinguishing particulars of; to specify. 1. To show, mark, or designate the species, or the distinguishing particulars of; to specify.[Obs.]