photosensitize vs sensitise

photosensitize and sensitise both are verbs.

Word	Noun	Adjective	Verb	Adverb
photosensitize	No	No	Yes	No
sensitise	No	No	Yes	No

As verbs, sensitise is a hypernym of photosensitize; that is, sensitise is a word with a broader meaning than photosensitize:

photosensitize: make (an organism or substance) sensitive to the influence of radiant energy and especially light
sensitise: cause to sense; make sensitive

Other hypernyms of photosensitize include sensitize.

photosensitize (verb)	sensitise (verb)
make (an organism or substance) sensitive to the influence of radiant energy and especially light	make sensitive or aware
	make (a material) sensitive to light, often of a particular colour, by coating it with a photographic emulsion
	make sensitive to a drug or allergen
	cause to sense; make sensitive