mesyl.
The univalent radical CH₃SO₂– of methanesulfonic acid.
Meaning & usage
The univalent radical CH₃SO₂– of methanesulfonic acid.
Where this word comes from
Contraction of methylsulfonyl.
Obsolete form of mesel, in its various senses.
Where this word comes from
From Middle English mesel (“leprous, leper”), from Norman mesel (“leprous, leper”), from Old French mesel (“leprous, leper”), from Late Latin misellus (“leper”), from miser (“wretched, wretch”) + -ellus (“-elle”). Doublet of measles.
Obsolete form of mesel, in its various senses.
Where this word comes from
From Middle English mesel (“leprous, leper”), from Norman mesel (“leprous, leper”), from Old French mesel (“leprous, leper”), from Late Latin misellus (“leper”), from miser (“wretched, wretch”) + -ellus (“-elle”). Doublet of measles.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.