noun, plural me·dul·las, me·dul·lae [muh-duhl-ee] /məˈdʌl i/.
- the marrow of the bones.
- the soft, marrowlike center of an organ, as the kidney or adrenal gland.
- medulla oblongata.
Origin of medulla
Examples from the Web for medulla
But the medulla in a human hair would look just about like this, very thin.
The drug kills by its action on the respiratory centre in the medulla oblongata.
Beginning at the bottom of the figure, we observe the medulla oblongata rising from the spinal cord to reach the cerebrum.
The medulla is nothing more than air cells running through the center of the hairshaft.
But they were only stylized gestures leading to conditioned reflexes deep in the medulla.The Sensitive Man|Poul William Anderson
British Dictionary definitions for medulla
noun plural -las or -lae (-liː)
Word Origin for medulla
Word Origin and History for medulla
hindmost segment of the brain, 1650s, from Latin medulla, literally "marrow," also "pith of plants," of unknown origin, perhaps related to or influenced by medius "middle" (but cf. also Old Irish smiur, Welsh mer "marrow"). The word was used in the Latin senses in Middle English. Related: Medular; medullary.