Obs. rare–1. [f. ANIMAL, with dim. ending, as in It. -iglio, Sp. -illo (-ilyo).] A tiny animal, an animalcule.
1639. Howell, Fam. Lett. (1650), II. 64. The same proportion which those small animalillios bore with me … the same I held with those glorious spirits which are near the throne.
