adj. Living or growing in a fen (now only of plants).
the GNU version of the Collaborative International Dictionary of English
adj. Pertaining to, or inhabiting, a fen; abounding in fens; swampy; boggy.
The Century Dictionary and Cyclopedia
Having the character of a fen; boggy; marshy.
Inhabiting or growing in fens; abounding in fens: as, fenny brake.
Muddy.
Same as finewed.
Word Usage
"The machinery is long gone and water mint, butterwort, dragonflies and frogs flourish in the fenny pools where grey crystals of galena were separated from the spoil, but the shells of the buildings remain."