'Lammas Day' definitions:

Definition of 'Lammas Day'

From: WordNet
noun
Commemorates Saint Peter's miraculous deliverance from prison; a quarter day in Scotland; a harvest festival in England [syn: Lammas, Lammas Day, August 1]

Definition of 'Lammas day'

From: GCIDE
  • Lammas \Lam"mas\, n. [AS. hl[=a]mmesse, hl[=a]fm[ae]sse, loaf mass, bread feast, or feast of first fruits; hl[=a]f loaf + m[ae]sse mass. See Loaf, and Mass religious service.] The first day of August; -- called also Lammas day, and Lammastide. [1913 Webster] Lammergeier Lammergeir