Definition of peat in US English:



  • A brown, soil-like material characteristic of boggy, acid ground, consisting of partly decomposed vegetable matter. It is widely cut and dried for use in gardening and as fuel.

    ‘cuttings are rooted in a homemade mixture of equal parts peat and sand’
    as modifier ‘most of Lewis is acid peat bog’
    • ‘The directive does require farmers to supply pigs with rooting materials such as straw, hay, wood, sawdust, compost or peat.’
    • ‘Other garden peat can contain chemicals that can harm discus fish so just be careful.’
    • ‘It is believed to get its name from a long gone drainage channel which ran over a peat bog.’
    • ‘Two rivers flowed between us and our destination, a miniature hut lost in an expanse of peat bog.’
    • ‘The route meanders up, over the rocks and then more peat bog.’
    • ‘A lot of East Anglia was covered in peat bog, until they decided to drain it.’
    • ‘There is no air in a peat bog and, therefore, undrained peat is made up of 90% water.’
    • ‘In marked contrast, needles of a variety of conifers are frequently abundant in peat and lake deposits.’
    • ‘It provides a good usable soil amendment for the garden and is certainly much less expensive than peat.’
    • ‘The climate was temperate but windy, the terrain a mixture of downland, rocky hills and peat bogs.’
    • ‘It may be desirable to amend the soil with sand or peat.’
    • ‘Potting mixes containing peat seem to be particularly affected by fungus gnats.’
    • ‘Potting soil contains rich organic material such as peat and various composted barks.’
    • ‘Place the seeds in a plastic bag with a mixture of sand and peat or other suitable growing mix.’
    • ‘Dig materials such as straw, peat, compost, and leaves into the soil, or lay them on as mulch.’
    • ‘The largest frozen peat bog in the world, lying in western Siberia, is melting, according to Russian scientists.’
    • ‘At 350 hectares, Foulshaw Moss is one of the largest remaining areas of peat bog habitat in Britain.’
    • ‘The reason why it was so well preserved was that it was recovered from a peat bog.’
    • ‘The plant material, which forms deposits of peat locally, is likely the source of the phosphate.’
    • ‘An energy tax would penalise industries which use energy based on fossil fuel, including oil, coal and peat.’
    fertilizer, mulch
    View synonyms


Middle English: from Anglo-Latin peta, perhaps of Celtic origin.