- any crab-shaped spider of the family Thomisidae, characterized by its sideways manner of moving.
Origin of crab spider
First recorded in 1860–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for crab spider
She does not become thin and wither away, like the Crab-spider.
The crab-spider is one of the most horrible of Nature's creations.The Life and Genius of Nathaniel Hawthorne
Frank Preston Stearns
Skillful in the prompt despatch of her prey, the little Crab-spider is no less clever in the nesting art.
Many Spiders leave their nests after they have laid the eggs, but the Labyrinth, like the Crab-spider, remains to watch over hers.