nekton
nekton[ˈnɛkt(ə)n, -tɒn]noun- [mass noun](Zoology)aquatic animals that are able to swim and move independently of water currents
(动)游泳生物,自泳生物。 常与plankton 相对
派生nektonicadjective语源- late 19th cent.: via German from Greek nēkton, neuter of nēktos 'swimming', from nēkhein 'to swim'
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