sinapism (sinapizm)

[F. sinapisme, L. sinapizare ), cover with a mustard-plaster, L. sinapi ), mustard: see senvy.] A plaster composed wholly or in part of mustard-flour; a mustard-plaster. The places ought, before the application of those topicke medicines, to be well prepared with the razour, and a sin apisme or rubicative made of mustard-seed, untill the place look red. Holland, tr. of Pliny, xxix. 6.