- any of various crabs of the family Majidae, having long, slender legs and a comparatively small, triangular body.
Origin of spider crab
First recorded in 1700–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for spider crab
This species of spider-crab is found from Greenland to New Jersey, in shallow as well as in deep water.The Sea-beach at Ebb-tide
Augusta Foote Arnold
When a spider-crab grows too large for his clothes, he rips them at the back, and out he slides, a helpless soft mass.
- any of various crabs of the genera Macropodia, Libinia, etc, having a small triangular body and very long legs