TANGELO
Tan"ge*lo (tan"je*lo), n. [Tangerine + pomelo.]
Defn: A hybrid between the tangerine orange and the grapefruit, or pomelo; also, the fruit.
TANGENCE
Tan"gence, n.
Defn: Tangency. [R.]
TANGENCY
Tan"gen*cy, n.
Defn: The quality or state of being tangent; a contact or touching.
TANGENT
Tan"gent, n. Etym: [L. tangens, -entis, p.pr. of tangere to touch;
akin to Gr. tangente. Cf. Attain, Contaminate, Contingent, Entire,
Tact, Taste, Tax, v. t.] (Geom.)
Defn: A tangent line curve, or surface; specifically, 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 tangent of an arc. — Natural tangent, a decimal expressing the length of the tangent of an arc, the radius being reckoned unity. — Tangent galvanometer (Elec.), a form of galvanometer having a circular coil and a short needle, in which the tangent of the angle of deflection of the needle is proportional to the strength of the current. — Tangent of an angle, the natural tangent of the arc subtending or measuring the angle. — Tangent of an arc, a right line, as ta, touching the arc of a circle at one extremity a, and terminated by a line ct, passing from the center through the other extremity o.
TANGENT
Tan"gent, a. Etym: [L. tangens, -entis, p.pr.]
Defn: Touching; touching at a single point; specifically (Geom.)