papillary muscle

1. 1.

   any of several muscles associated with the atrioventricular valves

   “the papillary muscles contract during systole to prevent regurgitation of blood into the atria”

   Broadercardiac muscle

   Part ofatrioventricular valve

Questions about papillary muscle

What does papillary muscle mean?

papillary muscle means "any of several muscles associated with the atrioventricular valves".

Is papillary muscle a common word?

papillary muscle is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.