η Greek Small Letter Eta
U+03B7
η
ℹ️ About
The Greek Small Letter Eta (η) is the seventh letter of the Greek alphabet. In modern Greek, it represents the close front unrounded vowel [i]. Beyond linguistics, “η” is a fundamental symbol in science, often denoting thermodynamic efficiency, viscosity in fluid mechanics, or electromagnetic impedance.
⚠️ Note: Do not confuse with the Latin letter n (U+006E) or the IPA symbol ɲ.
⚡ Codes
HTML
η
CSS
\03B7
Python
\u03B7
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