meristematic tissue definition
meristem. n. 1. (Botany) a plant tissue responsible for growth, whose cells divide and differentiate to form the tissues and organs of the plant. Meristems occur within the stem (see cambium) and leaves and at the tips of stems and roots. [C19: from Greek meristos divided, from merizein to divide, from meris portion]. (ËmÉr ÉËstÉm).