Dictionary
2 ENTRIES FOUND:

sulfonic acid

noun

Definition of SULFONIC ACID

:  any of numerous acids that contain the SO3H group and may be derived from sulfuric acid by replacement of a hydroxyl group by either an inorganic anion or a monovalent organic group

First Known Use of SULFONIC ACID

1873

sulfonic acid

noun    (Medical Dictionary)

Medical Definition of SULFONIC ACID

:  any of numerous acids that contain the SO3H group and may be derived from sulfuric acid by replacement of a hydroxyl group by either an inorganic anion or a monovalent organic group

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