aether

English Thesaurus

1. a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves (noun.communication)

hypernym	:	medium,
definition	:	an intervening substance through which signals can travel as a means for communication (noun.communication)

2. personification of the sky or upper air breathed by the Olympians; son of Erebus and night or of Chaos and darkness (noun.person)

hypernym	:	greek deity,
definition	:	a deity worshipped by the ancient Greeks (noun.person)