straight line

Definitions of straight line
  1. noun
    a line traced by a point traveling in a constant direction; a line of zero curvature
    “the shortest distance between two points is a straight line
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    Antonyms:
    curve, curved shape
    the trace of a point whose direction of motion changes
    types:
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    perpendicular
    a straight line at right angles to another line
    asymptote
    a straight line that is the limiting value of a curve; can be considered as tangent at infinity
    tangent
    a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point
    secant
    a straight line that intersects a curve at two or more points
    radius
    a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
    diameter
    a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)
    chord
    a straight line connecting two points on a curve
    element
    a straight line that generates a cylinder or cone
    bias, diagonal
    a line or cut across a fabric that is not at right angles to a side of the fabric
    diagonal
    (geometry) a straight line connecting any two vertices of a polygon that are not adjacent
    vector
    a straight line segment whose length is magnitude and whose orientation in space is direction
    element of a cone
    a straight line joining the apex and a point on the base
    element of a cylinder
    a straight line running the length of the cylinder
    ray
    (mathematics) a straight line extending from a point
    type of:
    line
    a length (straight or curved) without breadth or thickness; the trace of a moving point
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