Real Dictionary

gyro
countable noun: A gyro is the same as a gyroscope.

gyro in American English 1
gyroscope
noun: a navigational compass containing a gyroscope rotor, that, when adjusted for the latitude and speed of the vessel or aircraft, indicates the direction of true north along the surface of the earth or communicates this information to one or more gyro repeat

gyro in American English 2
a sort of loaf consisting of layers of lamb or lamb and beef, roasted, as on a vertical spit, and sliced
noun: meat, usually lamb, roasted on a vertical spit, then thinly sliced, topped with onions, and usually served in a sandwich of pita bread

gyro in British English
noun

gyro- in American English
gyrating
combining form: a combining form meaning “ ring,” “ circle,” “spiral,” used in the formation of compound words

gyro- in British English
combining form
combining form: indicating rotating or gyrating motion