2. Adjective. Pertaining to a terrestrial planet with a living biosphere, other then Earth. ¹
3. Adjective. Anything beyond Earth. ¹
¹ Source: wiktionary.com
2. Adjective. Pertaining to a terrestrial planet with a living biosphere, other then Earth. ¹
3. Adjective. Anything beyond Earth. ¹
¹ Source: wiktionary.com