geocentricPronunciation: /dʒiːə(ʊ)ˈsɛntrɪk/Definition of geocentric adjective 1having or representing the earth as the centre, as in former astronomical systems. Compare with heliocentric. 2 Astronomy measured from or considered in relation to the centre of the earth. Derivatives geocentrically adverb geocentrism noun geocentric in other Oxford dictionaries Definition of geocentric in the US English dictionary