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c.1400, "abnormal narrowing in a body part," from Late Latin strictura "contraction, constriction," from past participle stem of stringere (2) "to bind or draw tight" (see strain (v.)). Sense of "criticism, critical remark" is first recorded 1650s, perhaps from the other Latin word stringere "to touch lightly" (see strigil).
stricture stric·ture (strĭk'chər)
A circumscribed narrowing of a hollow structure.