Also found in: Thesaurus.
Switch to new thesaurus
|Noun||1.||pressure unit - a unit measuring force per unit area|
unit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume"
atm, standard atmosphere, standard pressure, atmosphere - a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
millimeter of mercury, mm Hg, torr - a unit of pressure equal to 0.001316 atmosphere; named after Torricelli
millibar - a unit of atmospheric pressure equal to one thousandth of a bar; "atmospheric pressure at sea level is 1013 millibars"
bar - (meteorology) a unit of pressure equal to a million dynes per square centimeter; "unfortunately some writers have used bar for one dyne per square centimeter"