Xenobiology

//ˌzɛnəʊbaɪˈɒləd͡ʒi// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    The speculative biology of extraterrestrial life forms. uncountable

    "This massive skull is scored by deflected mass accelerator shots. The xenobiology files in your hardsuit computer can't identify the species. It must have been brought here from an unknown world."

  2. 2
    The biology of life forms with nonstandard biochemistry or codes. uncountable

Example

More examples

"I read the research paper "Xenobiology: A new form of life as the ultimate biosafety tool.""

Etymology

From xeno- + biology. Sometimes attributed to science-fiction author Robert A. Heinlein.

Related phrases

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