A Blockage in an Organ or Blood Vessel

This page is the CodyCross answer for the clue below from Campsite Adventures, Group 832, Puzzle 3 (Catching Fireflies).

Question is: A Blockage in an Organ or Blood Vessel

and the answer is: OCCLUSION

Word Meaning:

OCCLUSION — The process of occluding, or something that occludes.

Definitions from Wiktionary.