hypodermic syringe vs hypo

hypodermic syringe and hypo both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypodermic syringe	Yes	No	No	No
hypo	Yes	No	No	No

As nouns, hypodermic syringe and hypo are synonyms defined as:

hypodermic syringe and hypo: a piston syringe that is fitted with a hypodermic needle for giving injections

Other synonyms of hypodermic syringe include hypodermic.

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