medullary

[ med-l-er-ee, mej-uh-ler-ee, muh-duhl-uh-ree ]

/ ˈmɛd lˌɛr i, ˈmɛdʒ əˌlɛr i, məˈdʌl ə ri /

pertaining to, consisting of, or resembling the medulla of an organ or the medulla oblongata.

Origin of medullary

First recorded in 1610–20; medull(a) + -ary

post·med·ul·lar·y, adjective

Medullary shell hexagonal, one-third as large as the cortical shell.

Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) |Ernst Haeckel
It also shews the shallowness of the medullary groove in the anterior part of the body.

The Works of Francis Maitland Balfour, Volume IV (of 4) |Francis Maitland Balfour
This is more likely to occur in a cerebellar abscess in consequence of direct pressure on the medullary respiratory centres.

A System of Operative Surgery, Volume IV (of 4) |Various
Medullary shell with regular circular pores, twice as broad as the bars.

Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) |Ernst Haeckel

Fig. 16 shows an Oak where the blotches of medullary rays are large.

Trees of the Northern United States |Austin C. Apgar