| NOUN | substance | pyridine | a toxic colorless flammable liquid organic base with a disagreeable odor |
|---|
| Meaning | A toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal. | |
|---|---|---|
| Narrower | triphosphopyridine | A pyridine ring with three phosphorus groups |
| Broader | base, alkali | Any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water |
| Spanish | piridina | |
| Catalan | piridina | |
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