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tractor screw |
tractor trailer |
tractor-trailer |
tractoration |
tractory |
tractrix
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| trade acceptance
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tractrix
CIDE DICTIONARY
tractrix, n. [NL. See Tractor.].
A curve such that the part of the tangent between the point of tangency and a given straight line is constant; -- so called because it was conceived as described by the motion of one end of a tangent line as the other end was drawn along the given line. [1913 Webster]
For further exploring for "tractrix" in Webster Dictionary Online
