pyrene

plural pyrenes

1. chemistryA polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar

plural pyrenes

1. alternativebiologyAlternative form of pyrena.

1. GreekRomanhuman sciencesA daughter of King Bebryx who was loved or violated by Heracles; after fleeing into the wilderness and dying, she was buried by him, and the Pyrenees were said to be named after her.
2. obsoleteThe Pyrenees.

   The Pyrene (Πυρήνη) or Pyrenaei Montes were the boundary between Gallia and Iberia […]

   1878, William Smith, A Dictionary of Greek and Roman Geography, volume 1, page 949

   2 more examples

   The power of the Kings more abſolute, than in moſt other kingdomes, their territories very large; for the Kings of England, beſide Ireland, have commanded from the Iſles of Orkenay, to the Pyrene Mountains, and are de jure,Kings of all France by deſcent.

   1636, William Camden, “Britaine”, in Remaines Concerning Britaine, London: […] Thomas Harper, for John Waterſon, page 4

   Again it is from the Pyrene, which is a mountain towards the equinoctial setting (i.e. due west) in Celtica, that both the Istrus and the Tartessus flow; […]

   1879, Edward Herbert Bunbury, A History of Ancient Geography Among the Greeks and Romans, volume 1, page 399