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Related to Pele's hair: Pele's tears
Thin strands of volcanic glass that form when lava ejected from a volcano is spun out and stretched by the wind.
[Translation of Hawaiian lauoho o Pele : from lauoho, hair of the head (lau, leaf, frond + oho, hair of the head) + o, of + Pele, volcano goddess (from pele, lava flow).]
Pele's hair(ˈpeɪleɪz; ˈpiːliːz)
(Geological Science) fine threads of volcanic glass formed from molten lava by the action of wind, explosion, etc
[C20: translation of Hawaiian lauoho-o Pele, from Pele, name of the goddess of volcanoes]