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jackknife clam

jackknife clam

9.0
A sea clam with a long narrow shell that lives in sand
  • noun
  • /ˈdʒæknaɪf klæm/
  • US
translation icon : almeja cuchillo
  • The long, slender shell of the jackknife clam makes it easy to identify among other clams.

Examples

  • The jackknife clam burrows quickly into wet sand when disturbed by beachcombers.

  • Fishermen often dig for jackknife clams at low tide along the shore.

  • We found a beautiful jackknife clam on the beach.

  • The jackknife clam is a popular delicacy in coastal regions.

  • Fishermen often dig for jackknife clams at low tide along the shore.

  • The jackknife clam burrows quickly into wet sand when disturbed by beachcombers.

  • The long, slender shell of the jackknife clam makes it easy to identify among other clams.

Synonyms

knife-handle
vsjackknife clam
9.9

A small sea clam with a long narrow curved shell like the handle of a knife

focuses on coastal sandy habitat rather than shell resemblance

Surface Forms

Morphology

jackknife + clam

The compound name describes a clam whose shell resembles a jackknife: combining 'jackknife' (a folding knife) with 'clam' gives a straightforward shape-based descriptor. This kind of descriptive, form-based compound is cross-linguistically common and should be understandable to a B1 learner who knows both constituent words.

Etymology

The noun jackknife clam gets its name from its long, thin shell that looks like a closed pocketknife, a jackknife. Because the clam digs quickly into the sand and can snap shut like a folding knife, the name helps you picture its shape and fast movement.