The word centerless refers to something that has no centre. This term can also be used to refer to a cylindrical grinding machine, which carries out its work with the support of a blade that lies between two abrasive wheels.

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what is the definition of centerless

cen·ter

[sen-ter]

NOUN

1.

Geometry the middle point, as the point within a circle or sphere equally distant from all points of the circumference or surface, or the point within a regular polygon equally distant from the vertices.

2.

a point, pivot, axis, etc., around which anything rotates or revolves: The sun is the center of the solar system.

3.

the source of an influence, action, force, etc.: the center of a problem.

4.

a point, place, person, etc., upon which interest, emotion, etc., focuses: His family is the center of his life.

5.

a principal point, place, or object: a shipping center.

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In abstract algebra, the center of a group G, denoted Z(G), is the set of elements that commute with every element of G. In set-builder notation...