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horseshoe crab

horseshoe crab

2 7.8
A large sea animal with a hard shell shaped like a horseshoe and a long pointed tail
  • noun
  • /ˈhɔrsˌʃuː kræb/
  • Specialized
translation icon : cangrejo de herradura
  • Scientists study the horseshoe crab's unique blood, which is used to test for bacterial contamination.
  • horseshoe crab eggs

Examples

  • In spring, many people visit the beach to observe horseshoe crabs laying their eggs in the sand.

  • The horseshoe crab is often seen along the Atlantic coast, particularly during the spawning season.

  • Children were invited to make horseshoe crab puppets and fish prints.

    Blog text (1)
  • Blue crabs and horseshoe crabs were an incidental part of the catch.

    Academic text (1990)
  • Mollusks often latch onto the underside of the horseshoe crab.

    Academic text (2002)
  • The horseshoe crab's hard shell is home to a bevy of invertebrates.

    Academic text (2002)
  • The causes of declines in bay scallops, horseshoe crabs, and worms are unknown.

    Academic text (1990)
  • Though the water was murky, ZL spotted this baby horseshoe crab drifting in the water.

    Blog text (8)
  • Young horseshoe crabs encounter the same problem but deal with it through rapid growth, frequent moltings, and burrowing.

    Academic text (2002)
  • There were also plenty of horseshoe crabs, butterfly rays, Atlantic spadefish, and flounder.

    Blog text (9)

Synonyms

Limulus
vshorseshoe crab
  • Specialized
1 9.9

A sea animal with a hard shell, a kind of horseshoe crab

is the specific species term rather than a broader genus label
Limulus polyphemus
vshorseshoe crab
  • Specialized
9.9

A large sea animal with a hard horseshoe-shaped shell and a long pointed tail

is the common descriptive name used outside scientific naming
Xiphosurus polyphemus
vshorseshoe crab
  • Specialized
9.9

A large sea animal like a crab with a hard domed shell and pointed tail

is the broader descriptive term for the same animal

Surface Forms

Morphology

horseshoe + crab

The compound is compositionally built from 'horseshoe' (U-shaped object) + 'crab' (marine crustacean), so a B1 learner who knows both words will infer a crab-like marine animal with a horseshoe-shaped shell. Although biologically it is not a true crab, the shape-based, literal combination is salient and cross-linguistically transparent, making the basic meaning derivable from the constituents.

Etymology

Horseshoe crab gets its name from its hard, curved shell that looks like a metal 'horseshoe' and from its general look like a real 'crab'. So the name gives an easy picture of its shape and why people called it a 'crab' even though it is a very old sea animal and not a true crab.