There are 3 definitions of eta in English:

eta

Line breaks: eta
Pronunciation: /ˈiːtə
 
/

noun

1The seventh letter of the Greek alphabet (Η, η), transliterated as ‘e’ or ‘ē’.
More example sentences
  • This complex contains eight different homologous subunits, alpha, beta, gamma, delta, epsilon, zeta, eta, and theta.
  • The squads had been organized into Alpha, Beta, Gamma, Delta, Epsilon, Zeta, Eta and Theta.
1.1 (Eta) [followed by Latin genitive] Astronomy The seventh star in a constellation: Eta Carinae
More example sentences
  • This region, about 8000 light-years from Earth, is located near to the famous explosive variable star Eta Carinae, which lies just outside the field of view toward the upper right.
  • The striking picture reveals an eclectic mix of embryonic stars living in the tattered neighborhood of one of the most famous massive stars in our Milky Way galaxy, Eta Carinae.
  • Researchers using NASA's Far Ultraviolet Spectroscopic Explorer satellite have made the first ever direct observation of Eta Carinae's companion star.

Origin

from Greek ēta.

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Word of the day conspicuous
Pronunciation: kənˈspɪkjʊəs
adjective
clearly visible

There are 3 definitions of eta in English:

ETA1

Line breaks: ETA
Pronunciation: /ˌiːtiːˈeɪ
 
/

abbreviation

Estimated time of arrival, in particular the time at which an aircraft or ship is expected to arrive at its destination.

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There are 3 definitions of eta in English:

ETA2

Line breaks: ETA
Pronunciation: /ˈɛtə
 
/
A Basque separatist movement in Spain, founded in 1959, which is waging a terrorist campaign for an independent Basque state.

Origin

Basque acronym, from Euzkadi ta Azkatasuna 'Basque homeland and liberty'.

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