columella: translation
n. [L. dim. of columna, column]
1. A rod, pillar or column.
2. (CNIDARIA: Anthozoa)
The central skeletal mass of many corals.
3. (MOLLUSCA: Gastropoda)
The solid or hollow pillar of a univalve shell around which the whorls are arranged.
4. (NEMATA)
A structural unit of the female uterus composed of columns of cells believed to form the egg shell; prouterus; quadricolumella; tricolumella; oogenotop; crustaformeria.