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sul·fo·nate or chiefly Brit sul·pho·nate 'səl-fə-.nāt n a salt or ester of a sulfonic acid
sulfonate or chiefly Brit sulphonate vt, sul·fo·nat·ed or chiefly Brit sul·pho·nat·ed; sul·fo·nat·ing or chiefly Brit sul·pho·nat·ing to introduce the SO3H group into broadly to treat (an organic substance) with sulfuric acid
sul·fo·na·tion or chiefly Brit sul·pho·na·tion .səl-fə-'nā-shən n
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sul·fo·nate (sulґfo-nāt) a salt, ester, or anion of a sulfonic acid.Medical dictionary. 2011.