noun \ˈmer-ə-ˌstem\

Definition of MERISTEM

:  a formative plant tissue usually made up of small cells capable of dividing indefinitely and giving rise to similar cells or to cells that differentiate to produce the definitive tissues and organs
mer·i·ste·mat·ic \ˌmer-əs-tə-ˈma-tik\ adjective
mer·i·ste·mat·i·cal·ly \-ti-k(ə-)lē\ adverb

Origin of MERISTEM

Greek meristos divided (from merizein to divide, from meros) + English -em (as in system)
First Known Use: 1872


noun    (Concise Encyclopedia)

Meristem—J.M. Langham

In plants, region of cells capable of division and growth. Meristems are classified by location as apical, or primary (at root and shoot tips), lateral, or secondary (in the vascular cambium and cork cambium), or intercalary (at internodes, stem regions between the places at which leaves attach, and at leaf bases, especially in certain monocots, e.g., grasses). Apical meristems give rise to the primary plant body. Lateral meristems provide increase in stem girth. Injured tissues can convert other cells to new meristem for wound healing.


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