The mid front rounded vowel is a type of vowel sound, used in some spoken languages.
While there is no dedicated symbol in the International Phonetic Alphabet that represents the "exact" mid front rounded vowel between close-mid [ø] and open-mid [œ] (since no language is known to distinguish all three), 〈ø〉 is generally used. If precision is desired, diacritics can be used, such as 〈ø̞〉 or 〈œ̝〉.
Coupland, Nikolas (1990), English in Wales: Diversity, Conflict, and Change, p. 95, ISBN1-85359-032-0
Engstrand, Olle (1999), "Swedish", Handbook of the International Phonetic Association: A Guide to the usage of the International Phonetic Alphabet., Cambridge: Cambridge University Press, p. 140, ISBN0-521-63751-1
Iivonen, Antti; Harnud, Huhe (2005), "Acoustical comparison of the monophthong systems in Finnish, Mongolian and Udmurt", Journal of the International Phonetic Association35 (1): 59–71, doi:10.1017/S002510030500191X
Zimmer, Karl; Orgun, Orhan (1999), "Turkish", Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet, Cambridge: Cambridge University Press, pp. 154–158, ISBN0-521-65236-7