Eta (disambiguation)

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Eta (Η, η) is the seventh letter of the Greek alphabet.

ETA is Euskadi Ta Askatasuna, an armed Basque separatist group proscribed as a terrorist organization by the Spanish government.

Eta or ETA may also refer to:

Organisations[edit]

Science and technology[edit]

Other uses[edit]

See also[edit]

  • Eta Carinae, a highly luminous hypergiant double star
  • Eta conversion or η-conversion, the idea of extensionality in lambda calculus