stricture

Short definition from Wiktionary

Noun

1. 1
   A rule restricting behaviour or action.
2. 2
   A general state of restrictiveness on behavior, action, or ideology.
3. 3
   A sternly critical remark or review.
4. 4
   Abnormal narrowing of a canal or duct in the body.
5. 5
   Strictness.
6. 6
   A stroke; a glance; a touch.
7. 7
   The degree of contact, in consonants.