n.
1 Mus. a a brass instrument resembling a trumpet but shorter and wider. b its player. c an organ stop with the quality of a cornet. d a cornetto.
2 Brit. a conical wafer for holding ice-cream.
Derivatives:
cornetist n. cornettist n.
Etymology: ME f. OF ult. f. L cornu horn
2.
n. Brit. hist. the fifth commissioned officer in a cavalry troop, who carried the colours.
Derivatives:
cornetcy n. (pl. -ies).
Etymology: earlier sense 'pennon, standard' f. F cornette dimin. of corne ult. f. L cornua horns
Useful english dictionary. 2012.