Noun

1. A heavy form of woman's nightwear, with a hole to allow for sexual intercourse with the minimum of physical contact.
   • 1978, Benjamin Walker, Encyclopedia of Metaphysical Medicine, Routledge 1978, p. 257:

     In the Middle Ages one result of this extreme view was the invention of the chemise cagoule, a sort of heavy nightdress with a suitably placed hole, through which the husband could impregnate his wife while avoiding all other contact.