n. A family tree, or pedigree; specifically, such a pedigree made more or less decorative with heraldic or other ornaments; also, pedigree in general; order of descent; family: as, a man of the stemma of the Cecils.n. The simple as distinguished from the compound eye of an invertebrate; an ocellus: always sessile and immovable.n. One of the facets or corneules of a compound eye.n. In entomology, the tubercle from which an antenna arises.