Definition of "tracking" []

• The placing of students in any of several courses of study according to ability, achievement, or needs. Also called ability grouping. (noun)
• A control mechanism that adjusts that lateral pressure of a phonograph needle as it tracks in a groove. (noun)
• A control mechanism that adjusts the position of a magnetic tape as it moves across magnetic heads, as in a VCR. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When does Rogers give you the tracking information? iphone 3gswith Fido, they can give an update & tracking# if you call them."
• "There is another on the other side, what we call a tracking satellite."
• "Mahn explained what he referred to as a "tracking error" between the underlying oil market and the ETFs that "purport to track them in some manner," which have left many advisors and investors bewildered and frustrated."