columella

noun col·u·mel·la \ ˌkäl-yə-ˈme-lə \

Definition of columella

plural columellae play \ˌkäl-yə-ˈme-(ˌ)lē, -ˌlī\
1 :the central column or axis of a spiral univalve shell
2 a :the bony or partly cartilaginous rod connecting the tympanic membrane with the internal ear in birds and in many reptiles and amphibians
b :the bony central axis of the cochlea

columellar

play \ˌkäl-yə-ˈme-lər\ adjective

Origin and Etymology of columella

New Latin, from Latin, diminutive of columna


Medical Dictionary

columella

noun col·u·mel·la \ ˌkäl-(y)ə-ˈmel-ə \

medical Definition of columella

plural columellae \-ˈmel-(ˌ)ē also -ˌī\
1 :any of various anatomical parts likened to a column:
a :the bony central axis of the cochlea
b :the lower part of the nasal septum
2 :the central sterile portion of the sporangium in various fungi (Mucor and related genera)

columellar

play \-ər\ adjective

columellate

play \-ˌāt, -ət\ adjective

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