Fluke definition

Any of numerous parasitic flatworms, including the trematodes, some of which infect humans, and the monogeneans, which are chiefly ectoparasites of fish.

(nautical) The triangular blade at the end of an arm of an anchor, designed to catch in the ground.

(informal) A result, esp. a successful one, brought about by accident; stroke of luck.

Any of numerous parasitic flatworms, including the trematodes, some of which infect humans, and the monogeneans, which are chiefly ectoparasites of fish.

Either of the two flattened fins of a whale's tail.

Any of various flatfishes chiefly of the genus Paralichthys, especially the summer flounder.

A barb or barbed head, as on an arrow or a harpoon.

Either of the two horizontally flattened divisions of the tail of a whale.

Any of various flatfishes, esp. a genus (Paralichthys) of flounders.

A pointed part of an anchor, designed to catch in the ground.

Either of the two lobes of a whale's tail.

(slang, former) An accidentally good or lucky stroke in billiards, pool, etc.

The definition of a fluke is an odd occurrence that happens and is unlikely to be repeated.

(informal) To hit or get by a fluke.

(games) An accidentally good or successful stroke in billiards or pool.

A chance occurrence.

A barb or barbed head of an arrow, harpoon, etc.