Definitions from Wiktionary (jackknife clam)

▸ noun:  common name for several species of saltwater shellfish in the family Solenidae; also known as razor shells. Their shells are long and narrow, suggesting a folded jackknife or cut-throat razor
▸ Also see jackknife_clam


▸ Words similar to jackknife clams
▸ Usage examples for jackknife clams

▸ Idioms related to jackknife clams
▸ Wikipedia articles (New!)
▸ Words that often appear near jackknife clams
▸ Rhymes of jackknife clams

▸ Invented words related to jackknife clams