What does medullary mean?
Medullary is an adjective meaning relating to, resembling, or located in a medulla. A medulla can be the soft interior of a plant stem, the inner tissue of an organ, or a specific part of the brain or spinal cord. The word is especially common in anatomy and medicine, as in medullary tissue, medullary cavity, and medullary cone, and it can also describe plant structures whose center is soft and spongy. Its sound and appearance may suggest marrow or pith, but the term is primarily technical. Medullary is more precise than simply saying inner or central because it identifies a particular anatomical or botanical core. It is generally used in formal and specialist writing rather than everyday speech.
adjectiveRelating to or resembling the medulla, especially the soft or spongy tissue found in the interior of a plant stem or the inner portion of an animal organ. In medicine, it describes tissue or structures associated with the medulla of an organ.
- Relating to or resembling the medulla or marrow.
- Relating to the inner, often soft or spongy, part of a plant stem or organ.
- Relating to the medulla oblongata or the medullary portion of the brain.
"The surgeon examined the medullary tissue of the kidney for abnormalities."
"The plant has a narrow medullary region running through the center of each stem."
"Medullary tissue in the kidney was examined during the biopsy."
"The medullary cone is an important part of the spinal cord's internal structure."
The word medullary comes from the same root as marrow, linking the softness of bone marrow with tissues at the inner core of organs.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does medullary come from?
Medullary derives from the Latin medulla, meaning “marrow” or the inner part, with the suffix -ary forming an adjective. English borrowed the term for anatomical and botanical structures through scientific and medical usage. Medulla and marrow are therefore related in origin, while medullar is a less common variant adjective.
Related word forms
How medullary is actually used
The word is formal and chiefly used in anatomy, medicine, botany, and related technical contexts. It is not usually used in ordinary conversation.