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track·ing    (tr  k   ng) KEY NOUN:
- The placing of students in any of several courses of study according to ability, achievement, or needs.
Also called
ability grouping.
- A control mechanism that adjusts that lateral pressure of a phonograph needle as it tracks in a groove.
- A control mechanism that adjusts the position of a magnetic tape as it moves across magnetic heads, as in a VCR.
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