| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024tan•gen•tial (tan jen′shəl),USA pronunciation adj. - 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.
Also, tan•gen•tal (tan jen′tl).USA pronunciation tan•gen′ti•al′i•ty, n. tan•gen′tial•ly, tan•gen′tal•ly, adv. Collins Concise English Dictionary © HarperCollins Publishers:: tangential /tænˈdʒɛnʃəl/ adj - of, being, relating to, or in the direction of a tangent
Also: transverse (of velocity) in a direction perpendicular to the line of sight of a celestial object- of superficial relevance only; digressive
tanˌgentiˈality n tanˈgentially, tanˈgentally adv tan•gent /ˈtændʒənt/USA pronunciation n. [countable]- Mathematicsa line or plane that touches but does not intersect a curve or surface at a point.
- MathematicsAlso called tan.a basic function in trigonometry that, in a right triangle, equals the side opposite an acute angle divided by the side next to that angle.
adj. - in physical contact; touching.
- Mathematicstouching at a single point, as a tangent in relation to a curve or surface.
Idioms- Idioms off on or at a tangent, going off suddenly from one course of discussion to another:has gone off on a tangent and forgotten his main idea.
tan•gen•tial /tænˈdʒɛnʃəl/USA pronunciation adj.See -tact-. WordReference Random House Unabridged Dictionary of American English © 2024tan•gent (tan′jənt),USA pronunciation adj. - in immediate physical contact;
touching. - Mathematics[Geom.]
- Mathematicstouching at a single point, as a tangent in relation to a curve or surface.
- Mathematicsin contact along a single line or element, as a plane with a cylinder.
- tangential (def. 3).
n. - Mathematics[Geom.]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.
- Mathematics[Trig.]
- (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. Abbr.: 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.
- off on or at a tangent, digressing suddenly from one course of action or thought and turning to another:The speaker flew off on a tangent.
- Latin tangent- (stem of tangēns, present participle of tangere to touch) in phrase līnea tangēns touching line; see -ent
- 1585–90
- 1.See corresponding entry in Unabridged meeting, abutting.
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