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

Recent Examples on the Web

Use superphosphate if squirrels have a tendency to dig in your beds. — Kathy Huber, Houston Chronicle, "Don't murder the crape myrtles when pruning," 2 Feb. 2018 Mix a little bone meal or superphosphate in the soil around each tuber. — Kathy Huber, Houston Chronicle, "Don't murder the crape myrtles when pruning," 2 Feb. 2018

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