Dictionary.com
definitions

chastity belt

noun
  1. a beltlike device, worn by women especially in the Middle Ages, designed to prevent sexual intercourse.

Origin of chastity belt

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for chastity belt

chastity belt

noun
  1. a locking beltlike device with a loop designed to go between a woman's legs in order to prevent her from having sexual intercourse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012