circ - coil
- circle
- circle of curvature
- circle of stress
- circle sprinkler
- circlip
- circuit
- circuit breaker
- circuit diagram
- circular column
- circular cutter
- circular division
- circular frequency
- circular graduation
- circular grinder
- circular grinding machine
- circular groove
- circular guide
- circular guideway
- circular interpolation
- circular knitting machine
- circular loom
- circular milling machine
- circular motion
- circular movement
- circular nut
- circular pitch
- circular rack
- circular robot arm movement
- circular runout
- circular saw
- circular sawing machine
- circular scale
- circular section
- circular shears
- circular thickness
- circular thread chaser
- circular washer
- circularity
- circulate
- circulating fluidized bed
