Definition of jackknife clam in English:

jackknife clam


North American
  • another term for razor clam
    • ‘Jackknife clams inhabit bays, estuaries, and lagoons near the mean low tide level in mud or muddy sand flats.’
    • ‘The razor clams served up at Wei Wei are also known as Atlantic Jackknife Clams, found along the Eastern Atlantic coasts ranging from South Carolina to Canada. The meat has the expected texture of clam, but a sweet flavor that may remind you of lobster.’