Definition of freshwater shrimp in English:

freshwater shrimp

noun

  • Any of several small, freshwater isopod crustaceans of the genus Gammarus; (in later use also) any of various freshwater decapod crustaceans of the infraorder Caridea.

Origin

Mid 18th century; earliest use found in Henry Baker (1698–1774), natural philosopher and teacher of deaf people.