photo-patch test
[ fō′tō-păch′ ]
n.
A test for contact photosensitization in which a patch containing the suspected sensitizer is applied to the skin for 48 hours; if there is no reaction, the area is exposed to a reddening dose of ultraviolet light; if the reaction is then positive, a more severe reaction develops at the patch site than in surrounding skin.
Words nearby photo-patch test
photo story,
photo-,
photo-ageing,
photo-mount,
photo-offset,
photo-patch test,
photo-secession,
photoactinic,
photoactivation,
photoactive,
photoaging