DIAMETER

Dictionary of Science, Literature and Art · 1854 · p. 9

(Gr. iia, through, and jitrpov, a mca sure.) A straight line pa ing through the centre of a geometrical figure, as that of a circle, ellipse, or hyperbola. Many figures have diameters, though they have, properly speaking, no centres; in this case, the diameter is the [s. 352]