phosphorus 1) fosfor (#); 2) rujâ, setâre-ye bâmdâdi (#) Fr.: phosphore 1) Nonmetallic chemical element; symbol P. → Atomic number 15;
→ atomic weight 30.97376;
→ melting point 44.1°C;
→ boiling point about 280°C. It
was discovered by the German merchant Hennig Brand in 1669. L. Phosphorus "morning star," from Gk. Phosphoros "morning star," literally "light bearing," from phos "light" + phoros "bearer," from pherein "to carry," cognate with Pers. bordan "to carry, lead" (→ periphery). The chemical element is such called because of its white color. 1) Fosfor, loan from Fr. |