그리스어 알파벳의 일곱 번째 글자.
The seventh letter of the Greek alphabet (Η, η), transliterated as 'e' or 'ē'.
예문:
"The professor explained that the letter eta was originally used to represent a long vowel sound."
"In many scientific formulas, the Greek letter eta represents the viscosity of a fluid."
별자리에서 일곱 번째로 밝은 별.
The seventh star in a constellation, usually designated by the Greek letter eta.
예문:
"Astronomers have been studying the massive star known as Eta Carinae for decades."
"The seventh brightest star in the constellation is designated as the eta star."