accessorius

[ ak-suh-sawr-ee-uh s, -sohr- ]
/ ˌæk səˈsɔr i əs, -ˈsoʊr- /

noun, plural ac·ces·so·ri·i [ak-suh-sawr-ee-ahy, -sohr-] /ˌæk səˈsɔr iˌaɪ, -ˈsoʊr-/.

Anatomy. any muscle, nerve, gland, etc., that reinforces the action of another.

Origin of accessorius

< New Latin, Medieval Latin: accessory
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for accessorius

accessorius

/ (ˌæksɛsˈɔːrɪəs) /

noun

anatomy a muscle or nerve that has an augmenting action

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