halfer

Noun

 * 1)  With regard to the Sleeping Beauty problem: one who argues that the probability of heads is 1/2.
 * 2)  One who possesses or gives half only; one who shares.
 * 3)  A gelded male fallow deer.
 * 1)  A gelded male fallow deer.
 * 1)  A gelded male fallow deer.