lachrymalEnglishOxford Dictionary of Englishlachrymal /ˈlakrɪml / (also lacrimal or lacrymal) ▸ adjective 1 formal, or literary connected with weeping or tears: that lachrymal, then guilt-ridden hour. 2 Physiology Anatomy (lacrimal) concerned with the secretion of tears: lacrimal cells. ▸ noun 1 Anatomy (lacrimal or lacrimal bone) a small bone forming part of the eye socket. 2 short for lachrymal vase – ORIGIN late Middle English (in lachrymal (sense 2 of the adjective)): from medieval Latin lachrymalis, from Latin lacrima ‘tear’.