gimbal
Concise Oxford English Dictionary © 2008 Oxford University Press:
gimbal /ˈdʒɪmb(ə)l, ˈgɪm-/ (also gimbals)
▶noun a device for keeping an instrument such as a compass or chronometer horizontal in a moving vessel or aircraft.
– derivatives
gimballed adjective.
gimballed adjective.
– origin C16: var. of earlier gimmal, itself a var. of ME gemel ‘twin, hinge’, from OFr. gemel ‘twin’.
'gimbal' also found in these Oxford entries:

