• (n.) Constriction or contraction of some natural passage, as in constipation from inflammation.
(ahrk-ta´shәn) stenosis.
Arc·ta'tion noun [ Latin arctus shut in, narrow, past participle of arcere to shut in: confer French arctation .] (Medicine) Constriction or contraction of some natural passage, as in constipation from inflammation. 
Type: Term Pronunciation: ark-tā′shŭn Definitions: 1. A narrowing, contraction, stricture, or coarctation.