| 1. | horseshoe crab. |
| 2. | Also called Alaskan king crab, Alaska crab. a large, edible crab, Paralithodes camtschatica, of cold North Pacific waters, esp. abundant along the coasts of Alaska and Japan. |
| a large marine arthropod, Limulus polyphemus, of shallow coastal waters of eastern North America and eastern Asia, having both compound and simple eyes, book gills, a stiff tail, and a brown carapace curved like a horseshoe: a living fossil related to the woodlouse. |
| horseshoe crab n. Any of various marine arthropods of the class Merostomata, especially Limulus polyphemus or Xiphosura polyphemus of eastern North America, having a large rounded body and a stiff pointed tail. Also called king crab, limulus. |
| king crab n.
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