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say it: mi-DUHL-uh
medulla is a noun meaning "a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers". It carries 3 recorded senses.
lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
“the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning”
the inner part of an organ or structure in plant or animal
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for medulla come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.