mushroom

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Concise Oxford English Dictionary © 2008 Oxford University Press:
mushroom/ˈmʌʃrʊm/
noun
  • 1 a spore-producing fungal growth, often edible and typically having a domed cap with gills on the underside.
  • 2 a pale pinkish-brown colour.
verb
  • 1 increase or develop rapidly: environmental concern mushroomed in the 1960s.
  • 2 form a shape resembling that of a mushroom.
  • 3 (usu. as noun mushrooming) gather mushrooms.
– derivatives
mushroomy adjective.
– origin ME: from OFr. mousseron, from late L. mussirio(n-).
'mushroom' also found in these Oxford entries:

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