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whalesucker

American  
[hweyl-suhk-er, weyl-] / ˈʰweɪlˌsʌk ər, ˈweɪl- /

noun

  1. a large, blue remora, Remora australis, that attaches itself to whales whale and dolphins.


Etymology

Origin of whalesucker

whale 1 + sucker