fluke

Noun

• parasitic flatworms having external suckers for attaching to a host

• either of the two lobes of the tail of a cetacean

• flat bladelike projection on the arm of an anchor

• a barb on a harpoon or arrow

• a stroke of luck

Related words

• Synonyms: 
  trematode , trematode worm , flue , good luck , good fortune