English word NPK comes from English potassa ((obsolete) The chemical compound potassium hydroxide.)
| Dictionary entry | Language | Definition |
|---|---|---|
| potassa | English (eng) | (obsolete) The chemical compound potassium hydroxide. |
| potassium | English (eng) | (countable) A single atom of this element.. A soft, waxy, silvery reactive metal that is never found unbound in nature; an element (symbol K) with an atomic number of 19 and atomic weight of 39.0983. The symbol is derived from the Latin kalium. |
| NPK | English (eng) |