radius


Definition: Meaning of, radius in English to English dictionary.

Pronunciation: / ˈreɪdɪəs /

  • noun
  • synonym
  • antonym
Word Forms:
Singular Plural
radius radii
[countable]
  1. the distance from the centre to the edge of a circle, or a line drawn from the centre to the edge [↪  diameter]
    SYNONYM
    Not found!
    ANTONYM
    Not found!
  2. an area that covers a particular distance in all directions from a central point
    SYNONYM
    Not found!
    ANTONYM
    Not found!
  3. technical the outer bone of the lower part of your arm
    SYNONYM
    Not found!
    ANTONYM
    Not found!
synonym
antonym

radius used in phrases

  • radius of curvature (noun)
    1. the radius of the circle of curvature; the absolute value of the reciprocal of the curvature of a curve at a given point
  • radius vector (noun)
    1. a line connecting a satellite to the centre of the body around which it is rotating
    2. a line connecting a point in space to the origin of a polar coordinate system
  • More