superphosphate


su·per·phos·phate

noun \ˌsü-pər-ˈfäs-ˌfāt\

Definition of SUPERPHOSPHATE

1
:  an acid phosphate
2
:  a soluble mixture of phosphates used as fertilizer and made from insoluble mineral phosphates by treatment with sulfuric acid

First Known Use of SUPERPHOSPHATE

1797

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