Definition: The anal orifice (cell “anus”) found in certain structurally complex protozoa, such as the rumen-dwelling ciliates of herbivores, through which waste matter is ejected.
[cyto- + G. pyge, buttocks]
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.