What is the meaning of Stricture?

A rule restricting behaviour or action.

A general state of restrictiveness on behavior, action, or ideology.

A sternly critical remark or review.

Abnormal narrowing of a canal or duct in the body.

Strictness.

A stroke; a glance; a touch.

The degree of contact, in consonants.

vocative masculine singular of strictūrus

Source: wiktionary.org