Lexic.us

Definition of Medulla

1. Noun. A white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers.

2. Noun. 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"

3. Noun. The inner part of an organ or structure in plant or animal.

Definition of Medulla

1. n. Marrow; pith; hence, essence.

Definition of Medulla

1. Noun. The soft inner part of something, especially the pith of a fruit. ¹

2. Noun. (anatomy) The inner substance of various organs and structures, especially the marrow of bones. ¹

3. Noun. (anatomy) The medulla oblongata. ¹

4. Noun. (botany) The internal tissue of a plant. ¹

¹ Source: wiktionary.com

Definition of Medulla

1. the central tissue in the stems of certain plants [n -LAS or -LAE] : MEDULLAR [adj]

Medical Definition of Medulla

1. The inner portion of an organ. (09 Oct 1997)

Lexicographical Neighbors of Medulla

medrick medricks medrinaque medroxyprogesterone medroxyprogesterone 17-acetate medroxyprogesterone acetate medrylamine medrysone meds medscanner

medscanners medspa medspas medspeak medulla (current term) medulla glandulae suprarenalis medulla nodi lymphatici medulla oblongata medulla of adrenal gland medulla of hair shaft

medulla of kidney medulla of lymph node medulla ossium medulla ossium flava medulla ossium rubra medulla renalis medulla spinalis medullae medullar

Literary usage of Medulla

Below you will find example usage of this term as found in modern and/or classical literature:

1. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"Internal Structure of the medulla Oblongata (Fig. 372). If the cranial nerves emerging from the medulla are traced into its substance, it will be seen that ..."

2. Anatomy, Descriptive and Applied by Henry Gray (1913)
"The medulla Oblongata (spinal bulb).—The medulla oblongata is the lowest and smallest division of the brain; its structure, however, is extremely complex, ..."

3. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and General (1890)
"The pons lies above and in front of the medulla, with which it is directly continuous. The cerebrum is the highest division, and lies above both pons aud ..."

4. Monographic Medicine by William Robie Patten Emerson, Guido Guerrini, William Brown, Wendell Christopher Phillips, John Whitridge Williams, John Appleton Swett, Hans Günther, Mario Mariotti, Hugh Grant Rowell (1916)
"Bilateral Lesions of the Pons and medulla Bilateral lesion of the medial ... Similar lesions in the medulla oblongata are prone to involve the nuclei of the ..."

5. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General by Thomas Spencer Baynes (1888)
"Thallus branched, rounded, or compressed, with woolly medulla. ... with woolly, rarely solid, medulla. ..."

6. Dictionary of Philosophy and Psychology: Including Many of the Principal by James Mark Baldwin (1901)
"Transverse decussating fibres of the ventral part of the medulla connecting the ... A longitudinal fibre system of the medulla of the lower vertebrates, ..."

Other Resources: