- A soldier who acts in light-horse. See under 5th light.
- a-west Indian fish for the genus Ephippus, remarkable for the large dorsal fin and brilliant colors.
- A light-armed cavalry soldier.
- A fish, Chætodipterus faber, of this household Ephippidæ: found from Cape Cod to Rio de Janeiro. See Chætodipterus, with cut.