hydrilla

[ hahy-dril-uh ]

noun

1. a submerged aquatic plant, Hydrilla verticillata, native to the Old World, that has become a pest weed in U.S. lakes and waterways.

hydrilla

/ haɪˈdrɪlə /

noun

1. any aquatic plant of the Eurasian genus Hydrilla, growing underwater and forming large masses: used as an oxygenator in aquaria and pools. It was introduced in the S US where it has become a serious problem, choking fish and hindering navigation

Word History and Origins

Origin of hydrilla¹

< New Latin (1814), the genus name, equivalent to Latin hydr ( a ) hydra + -illa diminutive suffix

Word History and Origins

Origin of hydrilla¹

C20: New Latin, probably from hydra