hypo vs sodium thiosulfate

hypo and sodium thiosulfate both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypo	Yes	No	No	No
sodium thiosulfate	Yes	No	No	No

As nouns, hypo and sodium thiosulfate are synonyms defined as:

hypo and sodium thiosulfate: a compound used as a fixing agent in photographic developing

Other synonyms of hypo include sodium thiosulphate.

hypo (noun)	sodium thiosulfate (noun)
a piston syringe that is fitted with a hypodermic needle for giving injections	a compound used as a fixing agent in photographic developing
a compound used as a fixing agent in photographic developing