1. A submerged aquatic plant with narrow leaves, native to North America and widely used in aquariums and as an oxygenator in ponds.
Usage: Also called waterweed or Canadian pondweed.; Genus Elodea; commonly Elodea canadensis.

Examples

• The aquarium contained several bunches of elodea to keep the water oxygenated.
• Elodea is a popular choice for beginners setting up planted tanks.
• The pond was choked with elodea, making it difficult to navigate.
• Fish in the tank nibbled on the tender shoots of elodea.
• Gardeners often use elodea to improve water quality in ornamental ponds.