Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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No pronunciation record was provided for this word.
noun
The activity of a bacterium or virus in the blood
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *ser- Proto-Indo-European *sér-o-der. Proto-Italic *serom Latin serumder. English serum English sero- Proto-Indo-European *h2eǵ- Proto-Indo-European *-eti Proto-Indo-European *h2éǵeti Proto-Italic *agō Latin agō Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus ▲ Ancient Greek ἐνεργητῐκός (energētĭkós)sl. Latin āctīvus Proto-Indo-European *-teh2 Proto-Indo-European *-ts Proto-Indo-European *-teh2ts Proto-Italic *-tāts Latin -tās Latin āctīvitāsder. Middle French activitébor. English activity English seroactivity From sero- + activity.
