gyro-

gyro-

a combining form meaning “ring,” “circle,” “spiral,” used in the formation of compound words: gyromagnetic; gyroscope.
Also, especially before a vowel, gyr-.


Origin:
< Greek gŷros ring, noun use of gȳrós round

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gyro- or (before a vowel) gyr-
 
combining form
1.  indicating rotating or gyrating motion: gyroscope
2.  indicating a spiral
3.  indicating a gyroscope: gyrocompass
 
[via Latin from Greek guro-, from guros circle]
 
gyr- or (before a vowel) gyr-
 
combining form
 
[via Latin from Greek guro-, from guros circle]

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