in zoology. See Mus.

LEMA, in mathematics, a proposition which serves previously to prepare the way for the more easy apprehension of the demonstration of some theorem, or construction of some problem.

LEMA, Duck-beak; a genus of the diandra order, belonging to the monocotyledons of plants. There are three species, all natives of Britain, growing frequently in ditches and the shallow parts of stagnant waters. All of them are acceptable food for ducks and geese.