heliocentric
Heliocentric (adjective) means having the sun at the centre, as with a coordinate system, orbit or astronomical model. Example: “The heliocentric model places the sun at the centre of the solar system.”
How to use heliocentric
Learner’s notesIn plain EnglishIt means centred on the sun, rather than on the Earth or anything else.
It is a technical term used mainly in astronomy and cosmology.
As an adjective it does not change form, so there is no comparative or superlative.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The _____ model places the sun at the centre of the solar system.
Etymology
Heliocentric is built from helio-, meaning sun, and the suffix -centric. The word has been used in this sense since the seventeenth century.