| Pyr | crested gray-and-red bird of southwest United States and Mexico |
|---|---|
| Pyr | king of Epirus |
| Pyr | a division of lower plants comprising unicellular and biflagellate algae that form starchy compounds |
| Pyr | epiphytic or lithophytic or terrestrial ferns of tropical Old World |
| Pyr | east Asian fern having fronds shaped like tongues |
| Pyr | small genus of chiefly Asiatic parasitic shrubs |
| Pyr | shrub of southeastern United States parasitic on roots of hemlocks having sparse spikes of greenish flowers and pulpy drupes |
| Pyr | fruit trees native to the Old World: pears |
| Pyr | Old World tree having sweet gritty-textured juicy fruit |
| Pyr | a colorless acid formed as an important intermediate in metabolism or fermentation |