spir - stat
- spiral
- spiral (helical) ribbon mixer
- spiral (helical) ribbon mixer
- spiral (mode)divergence
- spiral (mode)divergence
- spiral agitator
- spiral angle
- spiral arms
- spiral arrangement
- spiral axis
- spiral bacteria
- spiral balance
- spiral bar
- spiral bevel axle
- spiral bevel gear
- spiral bevel gear cutter
- spiral bevel gear generating machine
- spiral bevel gear generator
- spiral bevel gear pair
- spiral bevel gearing
- spiral bevel gears with offset axes
- spiral binding
- spiral bit
- spiral blower
- spiral books
- spiral borer
- spiral bottom
- spiral Bourdon tube
- spiral breaker
- spiral brush sifter
- spiral cam
- spiral canal
- spiral canal of cochlear axis
- spiral case
- spiral cased water turbine
- spiral casing
- spiral cast
- spiral cell
- spiral charge
- spiral chute
