a small woodland fern, Gymnocarpium dryopteris, of northern regions, having triangular, pinnate fronds that slant horizontally.
[ 1540-50; trans. of L dryopteris dryopterís, equiv. to dryo- (comb. form of drys oak) + ptéris fern ]
a small woodland fern, Gymnocarpium dryopteris, of northern regions, having triangular, pinnate fronds that slant horizontally.
[ 1540-50; trans. of L dryopteris dryopterís, equiv. to dryo- (comb. form of drys oak) + ptéris fern ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012