Definiciones
1.NounAny of various small structures in plants or animals that are columnar in shape.
2.NounThe skin at the end of the septum which separates the nostrils.
3.NounIn birds, reptiles, and amphibians, the small bone which carries vibration from the tympanum to the inner ear.
4.NounIn gastropods, the structure that extends down the middle of the whorls of the shell.
5.NounThe structure at the center of the calyx where the septa join together.
6.NounThe central sterile portion of the sporangium in various fungi.
7.NounA rod-shaped reinforcing element of the sexine layer of a pollen grain.