Definition of old-earth in US English:

old-earth

adjective

  • Attributive Of or relating to the great age of the earth as indicated by scientific evidence; specifically designating a form of creationism which, while holding that the earth and living organisms were divinely created, takes the scientific evidence of the earth's age into account; of or relating to this belief.

Origin

1970s. From old + earth.

Pronunciation

old-earth

/ˈəʊldəːθ/