Definitions
1.nounA type of soldier, originally one who threw grenades, later a member of a company formed from the tallest men of the regiment; now specifically, a member of the Grenadier Guards.
2.nounAny of various African weaverbirds or waxbills, especially the common grenadier or the red bishop.
3.nounAny of various deep-sea fish of the family Macrouridae that have a large head and body and a long tapering tail; a rattail.