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esculin

or aes·cu·lin

[ es-kyuh-lin ]
/ ˈɛs kyə lɪn /
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noun Chemistry.

a white, crystalline, slightly water-soluble glucoside, C15H16O9, obtained from the bark of the common horse chestnut and used chiefly in skin preparations as a protective against sunburn.

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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

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Origin of esculin

<Italian esculina<New Latin Aescul(us) (first part of genus name of species that produces it) + Italian -ina-in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for esculin

  • Esculin will not luminesce with peroxidase and H2O2, but pyrogallol or gallic acid will.

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