Watermilfoil

water + milfoil

Full definition of watermilfoil

Noun

1. Any of the freshwater plants of the genus .
• 2007, June 12, Lisa W. Foderaro, Battling a Nasty Green Invader From the Deep, At Augur Lake, where Mr. LaMere was hired to combat its Eurasian watermilfoil infestation, hundreds of sterile grass carp were released several years ago to eat the plants.