medulla

n. மச்சை, எலும்பின் பித்து, தண்டெலும்பு உட்சோறு, உறுப்பு வகைகளின் உட்கூறு, குண்டிக்காய் உட்கரு, பாலுட்டிகளின் மயிர் உட்கூறு, மரவினப்பித்து.

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Me*dul"la, n. Etym: [L.] 1. Marrow; pith; hence, essence. [Obs.] Milton. 2. (Anat.) Defn: The marrow of bones; the deep or inner portion of an organ or part; as, the medulla, or medullary substance, of the kidney; specifically, the medula oblongata. 3. (Bot.) Defn: A soft tissue, occupying the center of the stem or branch of a plant; pith. Medulla oblongata. Etym: [L., oblong medulla] (Anat.), the posterior part of the brain connected with the spinal cord. It includes all the hindbrain except the cerebellum and pons, and from it a large part of the cranial nerves arise. It controls very largely respiration, circulation, swallowing, and other functions, and is the most vital part of the brain; -- called also bulb of the spinal cord. See Brain.

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