omeg - orth
- omega completeness
- omega function
- omega-completion
- omega-consistency
- omega-square distribution
- omegatron
- omentum
- omit
- omitted sample
- omitted term
- omitted value
- omnibearing distance navigation
- omnibus technique
- omnibus test
- omnidistance
- omnigraph
- omphacite
- on-board bus
- on-board power source
- on-line control
- on-line data processing
- on-line operation
- on-line storage
- on-line tank
- on-line terminal
- on-line unit
- on-loading
- on-off action
- on-off control
- on-position
- on-receipt inspection
- on-shore trenching
- on-stream
- on-stream analysis
- on-the-air operation
- on-the-spot check
- on-the-spot inspection
- once differentiable
- once repeated root
- once-iterated
