| 单词 | water flea |
| 释义 | water flea (once / 454589 pages) n WORD FAMILY water flea: water fleas USAGE EXAMPLESThe parasites are transmitted to people who drink water infested with water fleas that have eaten Guinea worm larvae. Washington Post(Aug 20, 2016) Water fleas will be launched to the International Space Station on Friday as part of an experiment conceived by Welsh school pupils. BBC(Apr 08, 2016) There are also ways of chemically treating water sources to reduce populations of water fleas, but the microorganisms eventually return. Time(Jan 23, 2015) 1n 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|Hyper cyclops copepod, copepod crustacean minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish 2n minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae Syn|Hyper daphnia branchiopod, branchiopod crustacean, branchiopodan aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding |
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