What is another word for "radius"?

Roget's Thesaurus (1911) lists these synonyms for "radius": ample, amplitude, and, become, bore, breadth, broad, caliber, calibrate, corpulence, crassitude, diameter, dilation, discous, dumpy, expand, expansion, extent, fanlike, latifoliate, latitude, outspread, render, rope, size, space, squab, squat, superficial, thick, thicken, thickness, thickset, wide, widen, width.