Assertion: king crab's pair | /r/Synonym | chelicera
Facets:
Source sentences:
text: Underneath, the cephalothorax bears six pairs of legs: the first pair, called chelicerae, are used exclusively to seize worms, thin-shelled mollusks, crabs, and other prey.
text: The first pair is known as the chelicerae and is often pincer or fang-like and are generally used for feeding.