【化】 ball relief valve
ball; globe; orb; sphere; the earth
【医】 ball; balloon; bulb; bulbi; bulbo-; bulbus; globi; globus; glomera
glomus; orb; sphaer-; sphaero-; sphere; sphero-
heart; centre; feeling; intention; mind
【医】 cardia-; cardio-; cor; heart
relief valve; safety valve
【化】 pressure relief valve; relief valve; safety valve