sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove

The placing of students in any of several courses of study according to ability, achievement, or needs, the pursuit (of a person or animal) by following tracks or marks they left behind, The lateral pressure of a phonograph needle as it tracks in a groove, verb_ Present participle of track

A mark or succession of marks left by something that has passed, A path along which something moves; a course, Awareness of something occurring or passing, intransitive verb_ To leave marks on (a floor, for example) when moving or traversing, To observe the progress of; follow, To follow the undulations in the groove of a phonograph record. Used of a needle

The fleshy, movable, muscular organ, attached in most vertebrates to the floor of the mouth, that is the principal organ of taste, an aid in chewing and swallowing, and, in humans, an important organ of speech, The tongue of an animal, such as a cow, used as food, Speech or vocal sounds produced in a state of religious ecstasy, intransitive verb_ To provide (a board) with a tongue, To join by means of a tongue and groove, To project