Definition of "ɜ"

(IPA) An open-mid central unrounded vowel.  examples

(superscript ⟨ᶟ⟩, IPA) [ɜ]-coloring or a weak, fleeting, epenthetic or echo [ɜ].  examples

(Uralic Phonetic Alphabet) A vowel of uncertain quality.  examples

(obsolete) A letter of the Unified Northern Alphabet, written in the Latin script.