U+02D1 "ˑ" Modifier Letter Half Triangular Colon Unicode Character

U+02D1 "ˑ" Modifier Letter Half Triangular Colon is a diacritical mark used in phonetic transcription, most notably within the International Phonetic Alphabet, where it serves as a secondary articulation symbol indicating a lengthened or half-long pronunciation of the preceding sound, though it is distinct from the full-length triangular colon. Its visual form resembles a small, vertically aligned triangle or dot positioned at the top of the letter, and it is categorized as a modifier letter rather than a punctuation mark, emphasizing its role in altering the phonetic value of a base character. This character is encoded in the Spacing Modifier Letters block and is supported by standard Unicode fonts, allowing its use in linguistic notation for precise speech recording.