noun
sphere
SFEER/sfɪr/
A completely round three-dimensional form.
A smooth red wooden sphere rests on the tabletop.
Etymology
Greek sphaira meant a ball or globe, directly matching the round shape. Sphere also developed the abstract meaning of a range or scene of activity, as in a sphere of influence.
In context
this case, we have a circle. But we want to create the illusion of form in our drawing. And of course, the form version of our shape here is a sphere.
More examples
- She rolls the clay into a sphere.
- Every point on a sphere's surface is equally far from its center.
- The display contains spheres of several sizes.
Forms
sphere · spheres
spherical adjective — Shaped like a perfectly round ball.