track·ing 
(trăkĭng)
(trăkĭng)n.
1. The placing of students in any of several courses of study according to ability, achievement, or needs. Also called ability grouping.
2. The position of a magnetic tape as it moves across magnetic heads, as in a VCR.
3. The lateral pressure of a phonograph needle as it tracks in a groove.
- ommatophore
- Ommiad
- Ommiad
- omni-
- omnibus
- omnidirectional
- omnidirectional radio range
- omnifarious
- omnifariously
- omnipotence
- omnipotency
- omnipotent
- omnipotently
- omnipresence
- omnipresent
- omnirange
- omniscience
- omnisciency
- omniscient
- omnisciently
- omnisexual
- omnisexuality
- omnium-gatherum
- omnivore
- omnivorous