Based on or (poetic) resting on the earth; specifically located on the earth in contrast to being in space or on another planet; derived from or obtained using an instrument so placed.
Origin
Mid 19th century.
Definition of earth-based in US English:
earth-based
adjective
Based on or (poetic) resting on the earth; specifically located on the earth in contrast to being in space or on another planet; derived from or obtained using an instrument so placed.