Pelean1
/ˈpiːlɪən/Greek Mythol. Now rare
adjective
Of or relating to Peleus.
Origin
Early 17th century; earliest use found in Thomas Heywood (c1573–1641), playwright and poet. From the name of Peleus (classical Latin Pēleus, ancient Greek Πηλεύς), king of Phthia in Thessaly, and father of Achilles + -an.
Peléan2
/pɪˈleɪən/(also Pelean, Peléean) Geology
adjective
Of, relating to, or designating a type of volcanic eruption characterized by the vertical extrusion from the centre of very viscous lava which tends to form a solid plug or dome, and the lateral emission of nuées ardentes from points of weakness in the flank.
Origin
Early 20th century. From the name of Mount Pelée, a volcano on the island of Martinique, W. Indies, which erupted in this way in 1902 + -an.