COLUMELLAE
COLUMELLA
columella
(noun) a small column (or structure resembling a column) that is a part of a plant or animal
Source: WordNet® 3.1
Noun
columellae
plural of columella
Source: Wiktionary
COLUMELLA
Col`u*mel"la, n. Etym: [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 capsule of mosses.
2. (Anat.)
Definition: A term applied to various columnlike parts; as, the columnella,
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.
3. (Zoöl.)
(a) The upright pillar in the axis of most univalve shells.
(b) The central pillar or axis of the calicles of certain corals.
Source: Webster’s Unabridged Dictionary 1913 Edition