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mercapto

/məɹˈkæptoː/noun

mercapto is a noun meaning “The univalent radical -SH” (English Wiktionary, September 2026). It is spelled M-E-R-C-A-P-T-O, and it appears about once in every 74 million words in written English (wordfreq, 2021 data).

What does mercapto mean?

noun

  1. 1

    The univalent radical -SH

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce mercapto?

  • /məɹˈkæptoː/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is mercapto?

Mercapto appears about once in every 74 million words in written English, the 272,462nd most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Where does mercapto come from?

From mercaptan, from Latin mercurius captans (“mercury capturing”).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).