Describing a model of the universe where the sun is at the center and planets orbit around it, opposed to the older Earth-centered view.
From Greek 'helios' (sun) and Latin 'centrum' (center), first systematically proposed by Copernicus in the 1500s to replace the geocentric model.
Copernicus's heliocentric model seemed crazy when he published it—the Catholic Church basically said 'no way'—but it completely revolutionized how we understand our place in space!
Complete word intelligence in one call. Free tier — 50 lookups/day.