Open-mid central unrounded vowel

The open-mid central unrounded vowel, or low-mid central unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is $\langle\rangle$. Note that the IPA symbol is not the digit $\langle3\rangle$ nor Cyrillic small letter Ze (which is arose from the Greek letter zeta, Ζ ζ), but a reversed Latinized variant of the lowercase epsilon, ɛ. The value of this letter was only specified in 1993; before that, it was transcribed $\langle\rangle$.