columella


col·u·mel·la

noun \ˌkäl-yə-ˈme-lə\
plural col·u·mel·lae\-ˈme-(ˌ)lē, -ˌlī\

Definition of COLUMELLA

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
col·u·mel·lar \-ˈme-lər\ adjective

Origin of COLUMELLA

New Latin, from Latin, diminutive of columna
First Known Use: circa 1755

col·u·mel·la

noun \ˌkäl-(y)ə-ˈmel-ə\   (Medical Dictionary)
plural col·u·mel·lae \-ˈmel-(ˌalso -ˌī\

Medical Definition of COLUMELLA

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)
col·u·mel·lar \-ər\ adjective
col·u·mel·late \-ˌāt, -ət\ adjective

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