7 letters · 10 points in Scrabble
noun a salt or ester of sulphuric acid
verb convert into a sulfate
originFrom French sulfate, from New Latin sulphatum, taken from the expression acidum sulphatum (“sulfuric acid”), from sulphatus, from Latin sulphur (“sulfur”). The term was first used in 1787 by the French chemist L. B. G. De Morveau. Equivalent to sulf(ur) + -ate (“salt or ester”).
Etymology from Wiktionary, CC BY-SA 3.0