Exobiology

noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    The branch of biology dealing with lifeforms originating from a different planet. uncountable, usually

    "Biology has lately given rise to a new discipline: exobiology, the study of extraterrestrial life. Ever since 1959, when analysis of a piece of meteor substance showed traces of organic compounds, a controversy has raged as to whether these compounds came into the atmosphere with the meteorite or whether they originate on earth."

  2. 2
    the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life wordnet

Synonyms

All synonyms
anatomyastrobiologyastrobiologybacteriologybiochemistrybiology

Example

More examples

"My expertise at the Space Academy was astrobiology, aka exobiology."

Etymology

From exo- + biology, coined by American molecular biologist Joshua Lederberg.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.