η

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Greek lc eta.png
η U+03B7, η
GREEK SMALL LETTER ETA
ζ
[U+03B6]
Greek and Coptic θ
[U+03B8]

Translingual[edit]

Symbol[edit]

η

  1. (physics) the metric tensor in Quantum Field Theory.
  2. (chemistry, physics) the coefficient of viscosity

See also[edit]


Greek[edit]

Pronunciation[edit]

Etymology[edit]

From Ancient Greek ()

Article[edit]

η ‎(if sg

  1. (definite) nominative feminine singular of ο(o) (the)

Declension[edit]

Etymology[edit]

Derived from its majuscule counterpart Η, from the Phoenician letter 𐤇, heth.

Letter[edit]

η ‎(i) ‎(lowercase, uppercase Η)

  1. Lower-case eta, the eighth letter of the ancient Greek alphabet. Its name was ἦτα and it represented a long open-mid front unrounded vowel: /ɛː/. It is preceded by ζ and followed by θ.
  2. Lower-case eta, the seventh letter of the modern Greek alphabet. Its name is ήτα and it represents a close front unrounded vowel: /i/. It is preceded by ζ and followed by θ.

See also[edit]

Derived terms[edit]