torr vs mm Hg

torr and mm Hg both are nouns.

Word	Noun	Adjective	Verb	Adverb
torr	Yes	No	No	No
mm Hg	Yes	No	No	No

As nouns, torr and mm Hg are synonyms defined as:

torr and mm Hg: a unit of pressure equal to 0.001316 atmosphere; named after Torricelli

Other synonyms of torr include millimeter of mercury.

torr (noun)	mm Hg (noun)
a unit of pressure equal to 0.001316 atmosphere; named after Torricelli	a unit of pressure equal to 0.001316 atmosphere; named after Torricelli