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crustose

[ kruhs-tohs ]

adjective

, Botany, Mycology.
  1. forming a crusty, tenaciously fixed mass that covers the surface on which it grows, as certain lichens.


crustose

/ ˈkrʌstəʊs /

adjective

  1. biology having a crustlike appearance

    crustose lichens

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of crustose1

1875–80; < Latin crustōsus covered with a crust, equivalent to crust ( a ) crust + -ōsus -ose 1
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Example Sentences

On shaded sandstone, intermingled with an ash-gray, crustose thallus, which appeared like a sterile Pertusaria.

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