Any bryozoan which forms rounded or irregular patches of coral on stones, seaweeds, etc
scurf
Произношение
Этимология
[ 'sk&rf ] (noun.) before 12th century. Middle English, from Old English, of Scandinavian origin; akin to Icelandic skurfa scurf; akin to Old High German scorf scurf, Old English sceorfan to scarify.