Mercapto

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The univalent radical -SH especially, in-compounds, uncountable

    "The postulated mechanism for the reaction of coumarin 4 as an antioxidant, as indicated in Fig 3, relies on the mercapto hydrogen atom (bold), which is under the influence of resonance and inductive effects."

Synonyms

All synonyms
thiol

Example

More examples

"The postulated mechanism for the reaction of coumarin 4 as an antioxidant, as indicated in Fig 3, relies on the mercapto hydrogen atom (bold), which is under the influence of resonance and inductive effects."

Etymology

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

Related phrases

mercapto protease

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.