hm -abbr

  1. hectometer

HM -abbr

  1. Her Majesty; Her Majesty's; His Majesty; His Majesty's

HMAS -abbr

  1. Her Majesty's Australian ship; His Majesty's Australian ship

HMCS -abbr

  1. Her Majesty's Canadian ship; His Majesty's Canadian ship

HMO [,āch-(,)em-'ō] -n

  1. an organization that provides comprehensive health care to voluntarily enrolled individuals and families in a particular geographic area by member physicians with limited referral to outside specialists and that is financed by fixed periodic payments determined in advance called also health maintenance organization

Hmong ['məŋ] -n

  1. a member of a mountain-dwelling people inhabiting southeastern China and the northern parts of Vietnam, Laos, and Thailand
  2. the language of the Hmong people

HMS -abbr

  1. Her Majesty's ship; His Majesty's ship