noun · 4 senses · updated from the 2026-07-25 local source snapshot
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
Pronunciation
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Received-Pronunciation:/maɪˈəʊ.sɪs/
General-American:/maɪˈoʊ.sɪs/
US:Recorded audio is listed in the source snapshot.
homophone: miosis
rhymes with -əʊsɪs
CMU ARPABET:M AY0 OW1 S AH0 S
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A figure of speech whereby something is made to seem smaller or less important than it actually is.
Definition source: English Wiktionary via Wiktextract
Usage: countable, rhetoric, uncountable
No example sentence was provided for this meaning.
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: reduction division
Antonyms: none provided
3
noun
Meaning 3
understatement for rhetorical effect (especially when expressing an affirmative by negating its contrary)
Definition source: Princeton WordNet 3.0
Examples
saying `I was not a little upset' when you mean `I was very upset' is an example of litotes
Meaning relationships
Synonyms: litotes
Antonyms: none provided
Broader terms: understatement, rhetorical device
4
noun
Meaning 4
(genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: miosis, reduction division
Antonyms: none provided
Broader terms: cell division, cellular division
Narrower terms: nondisjunction
History
Etymology
From Ancient Greek μείωσις (meíōsis, “a lessening”), from μειόω (meióō, “I lessen”), from μείων (meíōn, “less”). The biological sense was coined by British biologists John Bretland Farmer and John Edmund Sharrock Moore in 1905 as maiosis in a paper in the Quarterly Journal of Microscopic Science, with the spelling corrected on etymological grounds later that year. Doublet of miosis.
Across languages
Translations
44 source translations are retained for this English entry.