/rooh'beuh fay"sheuhnt/ , adj.
1. causing redness of the skin, as a medicinal application.
n.
2. Med. a rubefacient application, as a mustard plaster.
[ 1795-1805; rubefacient- (s. of rubefaciens, prp. of rubefacere to redden), equiv. to rube-, var. s. of rubere to redden, be red + -facient- -FACIENT ]