HyperDic: mm_hg

English > 1 sense of the expression *mm Hg*:
NOUN	quantity	mm Hg, torr, millimeter of mercury	a unit of pressure equal to 0.001316 atmosphere

English > *mm Hg*: 1 sense > noun 1, quantity
Meaning	A unit of pressure equal to 0.001316 atmosphere; named after Torricelli.
Synonyms	torr, millimeter of mercury
Broader	pressure unit	A unit measuring force per unit area
Spanish	torr
Catalan	torr