Peat definition

pēt
Partly decayed, moisture-absorbing plant matter found in ancient bogs and swamps, used as a plant covering or fuel.
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Partially decayed vegetable matter, especially peat moss, found in bogs. The low levels of oxygen and the acidic environment in bogs prevent the degradation of peat. Peat is burned as fuel and also used as fertilizer.
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Peat is a decayed plant material that takes in moisture, or the name for the dried version of this material when used as fuel.

An example of peat is a material someone may add to his or her garden.

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Partially decomposed vegetable matter, usually mosses, found in bogs and used as fertilizer and fuel.
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A dried block of this used as fuel.
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Soil formed of dead but not fully decayed plants found in bog areas. [from 14th c.]
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(obsolete) A small person; a pet.

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Other Word Forms

Noun

Singular:
peat
Plural:
peats

Origin of peat

  • Middle English pete perhaps from Medieval Latin peta

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

  • Origin unknown; perhaps a borrowing from an unattested Pictish or Brythonic source.

    From Wiktionary

  • From a Middle English pet-from of Peter.

    From Wiktionary

  • Compare pet (“a favourite").

    From Wiktionary