gyr-
prefix
 (before a vowel) another name for gyro-
gyro- or (before a vowel) gyr-
combining form
indicating rotating or gyrating motion
⇒ 
gyroscope
indicating a spiral
indicating a gyroscope
⇒ 
gyrocompass
Origin
via Latin from Greek guro-, from guros circlegyr-
1 
variant of gyro- before a vowel:
gyral.
Related Words
- gyral
- gyrase
- gyrate
- gyro-
- gyroidal
- gyrose
gyr-
combining form
or gyro-
gyromagnetic
2. gyroscope
gyrocompass
combining form
or gyro-
 ETYMOLOGY  Greek gyros rounded
1. ring : circle : spiralgyromagnetic
2. gyroscope
gyrocompass
gyr-
combining form 
or gyro-
Etymology: probably from Middle French, from Latin, from Greek, from gyros  — more at gyre 
1. : ring : circle 
< gyromancy >
: spiral
< Gyroceras >
2. : gyral 
< gyroscope >
< gyrencephalate >
3. : gyroscope 
< gyrocompass >
or gyro-
1.
< gyromancy >
: spiral
< Gyroceras >
2.
< gyroscope >
< gyrencephalate >
3.
< gyrocompass >