biosignature en · NOUN
Pronunciation
- (US) audio
Etymology
Etymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βῐ́ος (bĭ́os) Ancient Greek βῐο- (bĭo-)der. English bio- English signature English biosignature From bio- + signature.
Meanings
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(qualifier:especially astrobiology) 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’.
2025 April 17, Iain Todd, “Astronomers have found the ‘most promising signs yet’ of alien life on a planet beyond our Solar System”, in BBC Sky at Night Magazine:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| biosignatures | Number=Plur | lexicographic |