Male of sheep, castrated before secondary sex characteristics develop.

A male sheep castrated before reaching puberty.

Sheep -- strictly speaking -- a wether is a male sheep castrated before sexual maturity. Livestock taken to market by Julian 9th in the days of the Kalkar occupation of Earth. [MMa] (Tarzan and his party at Athne are served drugged wether stew for breakfast.) [TMag

a gelded ram, chosen to lead the herd (thus his bell) due to the greater likelihood that he will remain at all times ahead of the ewes