Definition of occlusor in English:
occlusor
noun
Zoology
A muscle (or, rarely: other structure) that serves to close an opening or passage. Frequently attributive, especially in "occlusor muscle".
Origin
Mid 19th century. From classical Latin occlūs-, past participial stem of occlūdere occlude + -or.
Pronunciation
occlusor
/əˈkluːsə/