medullated

adjective

med·​ul·​lat·​ed ˈme-də-ˌlā-təd 

ˈme-jə-

1

of a nerve fiber : myelinated

2

of a hair or wool fiber : having a hollow space within the cortex (see cortex sense 1a(2))

Word History

First Known Use

1867, in the meaning defined at sense 1

Medical Definition

medullated

adjective

med·​ul·​lat·​ed ˈmed-ᵊl-ˌāt-əd  ˈmej-ə-ˌlāt- 

1

: myelinated

2

: having a medulla

—used of fibers other than nerve fibers