Mast Definition

măst
masts
noun
A tall spar or, now often, a hollow metal structure, sometimes in sections, rising vertically from the keel or deck of a vessel and used to support the sails, yards, radar and radio equipment, etc.
Webster's New World
A specified section of this.
The topmast.
Webster's New World
Any vertical pole, as in a crane or derrick.
Webster's New World
A metal post for the support of a radio aerial or television antenna.
Webster's New World
A captain's mast.
American Heritage
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verb
To put a mast or masts on.
Webster's New World
affix
Webster's New World
abbreviation

(emergency medicine, military) Initialism for military antishock trousers; inflatable trousers that apply pressure to the inferior half of a patient's body to decrease bloodloss and prevent the onset of shock similar to a tourniquet.

Wiktionary
idiom
before the mast
  • as a common sailor or with the common sailors
Webster's New World

Other Word Forms of Mast

Noun

Singular:
mast
Plural:
masts

Idioms, Phrasal Verbs Related to Mast

Origin of Mast

  • Middle English from Old English mæst

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English from Old English mæst

    From American Heritage Dictionary of the English Language, 5th Edition

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