a fern of marshy woodlands, Thelypteris palustris, having pale green pinnate leaves and an underground rootstock
marsh fern in American English
noun
a fern, Thelypteris palustris, having pinnatifid fronds and growing in wet places
Word origin
[1855–60]This word is first recorded in the period 1855–60. Other words that entered Englishat around the same time include: barrage, kickoff, pickup, pipeline, superheat