noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A type of biofilter designed to remove silt and pollution from surface runoff, consisting of a swaled drainage course with gently sloped sides and filled with vegetation, compost and/or riprap.

Synonyms

All synonyms

biofiltergreen infrastructurelandscape bioswaleswalevegetated trench

Antonyms

All antonyms

drainage ditchdry channelimpervious surface

Etymology

From bio- + swale.