Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: jackknife clam  'jak,nIf klam
  1. Marine clam having a long narrow curved thin shell
    - razor clam, knife-handle

Derived forms: jackknife clams

Type of: clam

Part of: Ensis, genus Ensis

Encyclopedia: Jackknife clam