jackknife clam

/ˌdʒækˈnaɪf klæm/
IPA guide

Definitions of jackknife clam
  1. noun
    marine clam having a long narrow curved thin shell
    synonyms: knife-handle, razor clam
    see moresee less
    type of:
    clam
    burrowing marine mollusk living on sand or mud; the shell closes with viselike firmness
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