Skip to main content
radius

radius

3 4.1
A bar that goes from the hub of a wheel to its rim
  • noun
  • /ˈreɪdiəs/
  • Archaic
translation icon : radio
  • When designing a custom wheel, measuring the radius is essential to ensure proper alignment and balance.

Examples

  • I can see it on the rear tire also, but not as pronounced because of the larger radius.

    Blog text (22)
  • This thick radius here, which I'm making really thick.

  • Pick the Rounded Rectangle Tool and make sure that the radius is set at 5px.

    Blog text (13)
  • Combined with a test rod radius of 2.5 mm, this resulted in a total radius of potentially damaged bone of up to 4 mm from each test site.

    Academic text (1991)
  • "The roots of trees can extend 1-2.5 times the radius of the branches, and many urban areas do not allow this extensive development," answers de Vos.

    Blog text (5)
  • A reduced-bend radius and low profile allow more severe flexing in OEM equipment or in-plant installations.

    Academic text (2006)
  • The radius is the bar that connects the center of the wheel to the edge, providing support for the structure.

  • In a bicycle wheel, the radius extends from the hub to the rim, ensuring the wheel maintains its shape while rotating.

Synonyms

spoke
vsradius
15 3.0

A thin bar that connects the center of a wheel to its outer edge to support it

is the more technical alternative term for the same part
wheel spoke
vsradius
3.6

A thin metal or wooden bar that connects the center of a wheel to its outer edge

is the concise technical label used instead of this descriptive phrase

Compounds

radius vector
  • Specialized
8.7

A straight line from a point to a central point, for example the center of rotation or the origin

radius of curvature
  • Specialized
7.7

The distance from a curve to the center of the circle that best fits the curve at a point

Surface Forms

radius singular
radii plural

Etymology

Radius comes from Latin radius, meaning a 'spoke' or 'rod', which is exactly like the bar that runs from the hub to the rim of a wheel. That's why a wheel spoke can be called a radius.