Len"ti*cel (lĕn"tĭ*sĕl),
n. [F. lenticelle, dim. fr. L. lens,
lentis, a lentil. Cf. Lentil.] (Bot.)
(a) One of the small, oval, rounded spots upon
the stem or branch of a plant, from which the underlying tissues may
protrude or roots may issue, either in the air, or more commonly when
the stem or branch is covered with water or earth.
(b) A small, lens-shaped gland on the under side
of some leaves.