occlusor

occlusor

(əˈkluːzə; -zɔː)
n
1. (Zoology) zoology
a. a muscle that closes an aperture when it contracts
b. (as modifier): an occlusor muscle.
2. (Zoology) (as modifier): an occlusor muscle.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014