Result from Foreign Dictionaries (2 entries found)
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Columella \Col`u*mel"la\, n. [L., dim. of columen column. See
{Column}.]
1. (Bot.)
(a) An axis to which a carpel of a compound pistil may be
attached, as in the case of the geranium; or which is
left when a pod opens.
(b) A columnlike axis in the capsules of mosses.
[1913 Webster]
2. (Anat.) A term applied to various columnlike parts; as,
the columella, or epipterygoid bone, in the skull of many
lizards; the columella of the ear, the bony or
cartilaginous rod connecting the tympanic membrane with
the internal ear.
[1913 Webster]
3. (Zool.)
(a) The upright pillar in the axis of most univalve
shells.
(b) The central pillar or axis of the calicles of certain
corals.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
columella
n 1: a small column (or structure resembling a column) that is a
part of a plant or animal
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