Post by t-bob on Feb 7, 2019 12:20:08 GMT -5
TANGENT & TANGENTIAL
—adjective
in immediate physical contact; touching.
Geometry.
touching at a single point, as a tangent in relation to a curve or surface.
in contact along a single line or element, as a plane with a cylinder.
tangential*(def 3).
—noun
Geometry.a line or a plane that touches a curve or a surface at a point so that it is closer to the curve in the vicinity of the point than any other line or plane drawn through the point.
Trigonometry.
(in a right triangle) the ratio of the side opposite a given angle to the side adjacent to the angle.
Also called tan. (of an angle) a trigonometric function equal to the ratio of the ordinate of the end point of the arc to the abscissa of this end point, the origin being at the center of the circle on which the arc lies and the initial point of the arc being on the x-axis. Abbreviation: tg, tgn
(originally) a straight line perpendicular to the radius of a circle at one end of an arc and extending from this point to the produced radius which cuts off the arc at its other end.
the upright metal blade, fastened on the inner end of a clavichord key, that rises and strikes the string when the outer end of the key is depressed.
—Idioms
off on/at a tangent,digressing suddenly from one course of action or thought and turning to another:
The speaker flew off on a tangent.
Origin: 1585–90; < Latin tangent- (stem of tangēns, present participle of tangere to touch) in phrase līnea tangēns touching line; see -ent
—Related forms
qua·si-tan·gent, adjective
Can be confused: circumference diameter radius tangent
*(def 3)
—adjective
pertaining to or of the nature of a tangent; being or moving in the direction of a tangent.
merely touching; slightly connected:
tangential information.
divergent or digressive, as from a subject under consideration:
tangential remarks.
tending to digress or to reply to questions obliquely.
Origin: First recorded in 1620–30; tangent + -ial
Also tan·gen·tal [tan-jen-tl] /tænˈdʒɛn tl/.
—Related forms
tan·gen·ti·al·i·ty, noun
tan·gen·tial·ly,
tan·gen·tal·ly, adverb
non·tan·gen·tal, adjective
non·tan·gen·tial, adjective
non·tan·gen·tial·ly, adverb
un·tan·gen·tal, adjective
un·tan·gen·tal·ly, adverb
un·tan·gen·tial, adjective
un·tan·gen·tial·ly, adverb
—adjective
in immediate physical contact; touching.
Geometry.
touching at a single point, as a tangent in relation to a curve or surface.
in contact along a single line or element, as a plane with a cylinder.
tangential*(def 3).
—noun
Geometry.a line or a plane that touches a curve or a surface at a point so that it is closer to the curve in the vicinity of the point than any other line or plane drawn through the point.
Trigonometry.
(in a right triangle) the ratio of the side opposite a given angle to the side adjacent to the angle.
Also called tan. (of an angle) a trigonometric function equal to the ratio of the ordinate of the end point of the arc to the abscissa of this end point, the origin being at the center of the circle on which the arc lies and the initial point of the arc being on the x-axis. Abbreviation: tg, tgn
(originally) a straight line perpendicular to the radius of a circle at one end of an arc and extending from this point to the produced radius which cuts off the arc at its other end.
the upright metal blade, fastened on the inner end of a clavichord key, that rises and strikes the string when the outer end of the key is depressed.
—Idioms
off on/at a tangent,digressing suddenly from one course of action or thought and turning to another:
The speaker flew off on a tangent.
Origin: 1585–90; < Latin tangent- (stem of tangēns, present participle of tangere to touch) in phrase līnea tangēns touching line; see -ent
—Related forms
qua·si-tan·gent, adjective
Can be confused: circumference diameter radius tangent
*(def 3)
—adjective
pertaining to or of the nature of a tangent; being or moving in the direction of a tangent.
merely touching; slightly connected:
tangential information.
divergent or digressive, as from a subject under consideration:
tangential remarks.
tending to digress or to reply to questions obliquely.
Origin: First recorded in 1620–30; tangent + -ial
Also tan·gen·tal [tan-jen-tl] /tænˈdʒɛn tl/.
—Related forms
tan·gen·ti·al·i·ty, noun
tan·gen·tial·ly,
tan·gen·tal·ly, adverb
non·tan·gen·tal, adjective
non·tan·gen·tial, adjective
non·tan·gen·tial·ly, adverb
un·tan·gen·tal, adjective
un·tan·gen·tal·ly, adverb
un·tan·gen·tial, adjective
un·tan·gen·tial·ly, adverb