superphosphate

From super- +‎ phosphate.

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superphosphate (countable and uncountable, plural superphosphates)

1. A fertilizer produced by the action of concentrated sulfuric acid on powdered phosphate rock.
2. A phosphate containing the greatest amount of phosphoric acid that can combine with the base.

superphosphate m (plural superphosphates)

1. superphosphate

• “superphosphate”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.