1. Not complete; not filled up; not finished; not having all its parts, or not having them all adjusted; imperfect; defective. A most imperfect and incomplete divine. (Milton)
2. (Science: botany) Wanting any of the usual floral organs; said of a flower.
(Science: mathematics) incomplete equation, an equation some of whose terms are wanting; or one in which the coefficient of some one or more of the powers of the unknown quantity is equal to 0.
Origin: L. Incompletus: cf. F. Incomplet. See in- not, and Complete.