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eta

/ˈiː.tə/

1 entry

noun

/ˈiː.tə/C1formal
  • ruСуществительное, обозначающее седьмую букву греческого алфавита (Η, η).

A noun referring to the seventh letter of the Greek alphabet (Η, η).

  1. Greek letterB1formal

    The seventh letter of the Greek alphabet, often used in mathematics and science.

    ruЭта

    • The symbol eta is used to represent efficiency in physics.
    • In the Greek alphabet, eta comes after zeta.
    • The letter eta is often written as a long 'e' sound.
Forms
  • etas plural form
  • etas' possessive plural form
  • eta's possessive singular form