- merit badge,
- merit pay
Origin of meristem
Word Origin for meristem
"growing cellular tissues of plants," 1862, formed irregularly from Greek meristos "divided, divisible" (from merizein "to divide, distribute," from meros "a part, a share;" see merit (n.)) + ending from xylem, etc.
The region on a plant where division of cells (and hence growth) occurs. Usually, meristems are found in the shoots and root tips, and places where branches meet the stem. In trees, growth occurs in the cambium — the layer just beneath the bark.