右脳 is read as うのう (unou) and means right brain.
うのう
unou
みぎうで
right arm
うがん
right bank (of a river)
うへん
right side (go, chess, othello board)
うけい
leaning to the right
みぎはんしん
right half of the body
うとう
person who enjoys sweet things (as opposed to alcohol)
みぎてのほうそく
(Fleming's) right-hand rule
みぎねじのほうそく
corkscrew rule
うだいじん
Minister of the Right (official in Nara and Heian periods)
うせつきんし
no right turn
うきょうしん
dextrocardia
うけいか
conservative swing