'Regimentals' definitions:

Definition of 'regimentals'

From: WordNet
noun
The military uniform and insignia of a regiment

Definition of 'Regimentals'

From: GCIDE
  • Regimentals \Reg`i*men"tals\ (-talz), n. pl. (Mil.) The uniform worn by the officers and soldiers of a regiment; military dress; -- formerly used in the singular in the same sense. --Colman. [1913 Webster]