horseshoe crab

English

Etymology

From horseshoe +‎ crab, referencing this animal's horseshoe-like shape.

Noun

horseshoe crab (plural horseshoe crabs)

  1. Any extinct or extant chelicerate in the order Xiphosura, actually more related to arachnids than true crabs.
    Synonym: xiphosuran
    1. (especially) Any extant xiphosuran in the family Limulidae.
      Synonym: king crab

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