r 1 h 4 e 1 s 1 u 1 s 1
6 letters · 9 points in Scrabble
Meaning
noun of southern Asia; used in medical research
originSo named because the first identified antigen (RhD) was originally believed to be the same as one discovered in rhesus macaques.
Etymology from Wiktionary, CC BY-SA 3.0