| Py | any of several basic compounds derived from pyrimidine |
|---|---|
| Py | a common mineral (iron disulfide) that has a pale yellow color |
| Py | any of various metallic-looking sulfides (of which pyrite is the commonest) |
| Py | nitrocellulose containing less nitrogen than guncotton |
| Py | a genus of Tyrannidae |
| Py | tropical American flycatcher found as far north as southern Texas and Arizona |
| Py | of or relating to or produced by chemical reactions at high temperatures |
| Py | relating to or exhibiting pyroelectricity |
| Py | relating to or exhibiting pyroelectricity |
| Py | generation of an electric charge on certain crystals (such as tourmaline) as a result of a change in temperature |
| Py | of or relating to pyrogallol |
| Py | a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer |