Dictionary.com
Thesaurus.com

omnicide

American  
[om-nuh-sahyd] / ˈɒm nəˌsaɪd /

noun

  1. the eradication of all life as a result of human activity.

    Nuclear weapons and now climate change confront us with the possibility of omnicide.


Etymology

Origin of omnicide

First recorded in 1955–60; omni- ( def. ) + -cide ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The recent hacks involving OpenAI and Anthropic agents gone rogue sound like they’re ripped straight from a paper about omnicide.

From The Wall Street Journal ● Aug. 1, 2026

Ellsberg was deeply determined to do all he could to help prevent omnicide.

From Salon ● Jun. 16, 2023

Vocabulary.com logo
by dictionary.com

Join 14,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training