Obstruction of a Tube or Opening in the Body
This page is the CodyCross answer for the clue below from World of Books, Group 291, Puzzle 1 (Periodical Collection).
Question is: Obstruction of a Tube or Opening in the Body
and the answer is: OCCLUSION
Word Meaning:
OCCLUSION — The process of occluding, or something that occludes.
Definitions from Wiktionary.