A printing plate or block produced by a photographic process (as photosetting). Also: the process by which such a plate is produced; a picture, etc., printed from it. Formerly also: †a kind of carbon printing process invented by M. Joubert (obsolete).
Frequently with numeral. Any of several skin types distinguished by their degree of sensitivity to sunlight.
Mid 19th century; earliest use found in The North American Review. From photo- + -type.