water flea

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming;
important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms
• Syn:
cyclops
• Hypernyms:
copepod, copepod crustacean
• Member Holonyms:
genus Cyclops
2. minute freshwater crustacean having a round body enclosed in a transparent shell;
moves about like a flea by means of hairy branched antennae
• Syn:
daphnia
• Hypernyms:
branchiopod crustacean, branchiopod, branchiopodan
• Member Holonyms:
genus Daphnia