Tractory definitions

Tractory

• (n.) A tractrix.
Found on http://thinkexist.com/dictionary/meaning/tractory/

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Tractory

Tractory is the curve in which a heavy particle moves when dragged at the end of an inextensible string by a body moving in a straight line.
Found on http://www.probertencyclopaedia.com/browse/AT.HTM

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