rotation speed

How fast spinning

Rotation speed is how fast something spins, measured in revolutions per unit of time—typically revolutions per minute (RPM).

The term applies to engines, hard drives, turntables, centrifuges, and any rotating machinery: The rotation speed of a vinyl record is 33⅓ RPM.

In astronomy, rotation speed describes how quickly a planet or star turns on its axis.

Related

centrifuge · whirl · figure skater · turbine · flywheel · momentum · tachometer · gear · full throttle · shaft · motor · high gear · propeller · wind turbine · cyclone · dizzying · blur · whirring

Opposites
magnitude

rotation speedstillness

Complete lack of motion

stationary · stopped · motionless · at rest · idle

presence of motion

rotation speedcomplete stop

inertia · stasis · immobility · fixedness

rate of angular motion

rotation speedstillness

Complete lack of motion

immobility · rest · motionlessness · dead stop

Family

rotation, speed, rotate, rotates, rotated, rotating, rotator, rotators, rotational

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G