Rhesus

Etymology
So named because the first identified antigen (RhD) was originally believed to be the same as one discovered in rhesus macaques.

Related terms

 * Rhesus factor
 * Rhesus negative
 * Rhesus positive
 * Rhesus system

Etymology
From.

Proper noun

 * 1)  A mythological king of Thrace killed by Diomede and Ulysses