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crustose

[kruhs-tohs] /ˈkrʌs toʊs/
adjective, Botany, Mycology
1.
forming a crusty, tenaciously fixed mass that covers the surface on which it grows, as certain lichens.
Compare foliose, fruticose.
Origin of crustose
1875-1880
1875-80; < Latin crustōsus covered with a crust, equivalent to crust(a) crust + -ōsus -ose1
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for crustose

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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10
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