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Definition of Columella
1. Noun. A small column (or structure resembling a column) that is a part of a plant or animal.
Definition of Columella
1. n. 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.
Definition of Columella
1. [n -MELLAE]
Medical Definition of Columella
1. The central axis of a moss capsule, sometimes applied to the central axis of fruits and cones. (09 Oct 1997)