Dictionary
superphosphate
noun su·per·phos·phate \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
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First Known Use of SUPERPHOSPHATE
1797
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