mmH2O

Translingual

Etymology

mm (millimeter) +‎ H2O (water)

Symbol

mmH2O

  1. abbreviation of millimeter of water (a unit of pressure, the pressure exerted by a column of water of 1 mm in height at 4 °C (in standard conditions, the temperature at which water has maximum density, in standard Earth gravity))

Synonyms

  • mm.g
  • mm.w.g.
  • mm.wc

See also