What does "biosignature" mean?

Any measurable phenomenon that indicates the presence or probable presence of life.

What is a synonym for "biosignature"?

Common synonyms include: biomarker.

noun

noun ·Rare ·Advanced level

Noun

1
Any measurable phenomenon that indicates the presence or probable presence of life.
"The team say dimethyl sulfide and dimethyl disulfide are molecules from the same chemical family, and could be ‘biosignatures’."

"The team say dimethyl sulfide and dimethyl disulfide are molecules from the same chemical family, and could be ‘biosignatures’."

From bio- + signature.

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