/krus"tohs/ , adj. Bot., Mycol.
forming a crusty, tenaciously fixed mass that covers the surface on which it grows, as certain lichens. Cf. foliose, fruticose .
[ 1875-80; crustosus covered with a crust, equiv. to crust ( a ) CRUST + -osus -OSE 1 ]
/krus"tohs/ , adj. Bot., Mycol.
forming a crusty, tenaciously fixed mass that covers the surface on which it grows, as certain lichens. Cf. foliose, fruticose .
[ 1875-80; crustosus covered with a crust, equiv. to crust ( a ) CRUST + -osus -OSE 1 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012