[ muh-duhl-uh ]
/ məˈdʌl ə /
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noun, plural me·dul·las, me·dul·lae [muh-duhl-ee]. /məˈdʌl i/.

  1. the marrow of the bones.
  2. the soft, marrowlike center of an organ, as the kidney or adrenal gland.
  3. medulla oblongata.
Botany. the pith of plants.



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Origin of medulla

1635–45; <Latin: marrow, pith
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for medulla

British Dictionary definitions for medulla

/ (mɪˈdʌlə) /

noun plural -las or -lae (-liː)

  1. the innermost part of an organ or structure
  2. short for medulla oblongata
botany another name for pith (def. 4)

Derived forms of medulla

medullary or medullar, adjective

Word Origin for medulla

C17: from Latin: marrow, pith, probably from medius middle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for medulla

[ mĭ-dŭlə ]

n. pl. me•dul•las

The inner core of certain organs or body structures, such as the marrow of bone.medullary substance

Other words from medulla

me•dullar null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for medulla

[ mĭ-dŭlə, mĭ-dōōlə ]

Plural medullas medullae (mĭ-dŭlē)

See medulla oblongata.
The central portion of an anatomical structure, such as the adrenal gland or the kidney.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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