01 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.
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1.
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.(Bot.)
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2.
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.(Anat.)
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3.
The upright pillar in the axis of most univalve shells.(Zool.)