Medical Dictionary
accessorius
noun ac·ces·so·ri·us \ˌak-sə-ˈsōr-ē-əs, -ˈsȯr-\
plural ac·ces·so·rii \-ē-ˌī, -ē-ˌē\
Medical Definition of ACCESSORIUS
1
: a muscle reinforcing the action of another
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