prec - prot
- precautionary area
- precession
- precession axis
- precessional movement
- precharacteristics study
- precipice
- precipitate
- precipitated water
- precipitates
- precipitation
- precipitation number
- precipitous sea
- precise bench mark
- precise instrument
- precision
- precision aneroid barometer
- precision approach radar
- precision depth recorder
- precision graphic recorder
- preclude
- precoating
- precolation
- precombustion
- precommissioning sea trials
- precompression
- precooler
- predetermined course
- predicted data
- predicted drift angle
- predicted ground speed
- predicted impact point
- predicted performance
- predicted range
- predicted target position
- predicted tide
- predicted value
- predicting of tide
- prediction reliability
- predictor
- prediluted oil
