noun. the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life.
- space biology
- astro- (English)
- ἄστρον (Ancient Greek (to 1453))
- biology (English)
- -logy (English)
Example sentences of the word astrobiology
1. Noun, singular or mass
These include studying astrobiology and microgravity, searching for life elsewhere in the universe, researching the atmosphere and galaxies, designing spacecrafts and space equipment and interpreting meteorological data.