Corpúsculum, pen. cor. Diminut. Cic.A litle or small body. Paruum corpusculum. Plin.
Lewis and Short: Latin dictionary
corpuscŭlum, i, n.dim. [corpus], a little body, most freq. of atoms, Lucr. 2, 152; 2, 530; 4, 199; Cic. N. D. 1, 24, 66 sq.: quantula hominum, Juv. 10, 173.—B. Esp.: florum, i.e. a collection, Just. praef. —II. As a term of endearment: melliculum, Plaut. Cas. 4, 4, 23.