moving parts

Gears and pistons

Moving parts are the components of a machine or system that physically move during operation—gears, pistons, wheels, levers.

The phrase often appears in assessments of complexity or reliability, since more moving parts mean more potential failure points: The fewer moving parts, the less that can go wrong.

Figuratively, moving parts describes the variable elements in any complex situation: This deal has a lot of moving parts.

Opposites
mechanical motion

moving partssolid-state

Using semiconductors, not tubes

chassis · dead weight

system complexity

moving partsintegrated circuit

Miniaturized semiconductor electronics package

simplicity · solid block · all-in-one · constants · invariables

mechanical dynamism

moving partssolid state

Using semiconductors, not tubes

chassis · frame · casing

Family

moving, movement, parts, motive, movable, motivation, motivate, immovable, moves

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G