Dictionary.com
definitions
  • synonyms

papillary muscle

See more synonyms for papillary muscle on Thesaurus.com
noun Anatomy.
  1. one of the small bundles of muscles attached to the ventricle walls and to the chordae tendineae that tighten these tendons during ventricular contraction.
Show More

Origin of papillary muscle

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
papillary muscle in Medicine

papillary muscle

n.
  1. Any of the group of myocardial bundles that terminate in the tendinous cords that attach to the cusps of the atrioventricular valves.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.