mə̇ˈdələ, meˈ- noun
( plural medullas -ləz ; or medul·lae -ˌlē)
Etymology: Latin; perhaps akin to Old English smeoru, smeru fat, grease — more at smear
1. plural medullas , obsolete
a. : the essence or pith of a matter
b. : compendium , summary
2. plural medullae
a. : marrow of bone or spinal cord
b.
[New Latin, from Latin]
: medulla oblongata
3.
[New Latin, from Latin]
a. : the inner or deep part of an organ or structure (as of a hair or kidney)
b. : the sheath of some nerve fibers
4. plural medullae : pith
5.
[New Latin, from Latin]
a. : the medullary layer of lichens
b. : the inner spongy layer of some fungi
c. : the central core of elongate colorless cells of the thalli of some brown algae
6.
[New Latin, from Latin]
: the internal portion of some protozoans