Definition of "spider crab" []

• Any of various crabs, such as those of the genera Libinia and Macrocheira, having long legs and a relatively small triangular body. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.