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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

5 words match “TANGENCY”

TANGENCY n.
The quality or state of being tangent; a contact or touching.
TACTION n.
The act of touching; touch; contact; tangency. "External taction." Chesterfield.
TANGENCE n.
Tangency. [R.]
TANGENT n.
ically, that portion of the straight line tangent to a curve that is between the point of tangency and a given line, the given line being, for example, the axis of abscissas, or a radius of a circle produced. See Trigonometrical function, under Function. Artificial, or Logarithmic, tangent, the logarithm of the natural…
TRACTRIX n.
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.