'Inchpin' definitions:

Definition of 'Inchpin'

From: GCIDE
  • Inchpin \Inch"pin\, n. [Written also inchipin, inche-pinne, inne-pinne.] [Cf. Gael. inne, innidh, bowel, entrail.] The sweetbread of a deer. --Cotgrave. [1913 Webster]