U+1D19 LATIN LETTER SMALL CAPITAL REVERSED R

U+1D19 was added to Unicode in version 4.0 (2003). It belongs to the block Phonetic Extensions in the Basic Multilingual Plane.

This character is a Lowercase Letter and is mainly used in the Latin script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+1D19 behaves as Alphabetic regarding line breaks. It has type Lower for sentence and ALetter for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

A pharyngeal consonant is a consonant that is articulated primarily in the pharynx. Some phoneticians distinguish upper pharyngeal consonants, or "high" pharyngeals, pronounced by retracting the root of the tongue in the mid to upper pharynx, from (ary)epiglottal consonants, or "low" pharyngeals, which are articulated with the aryepiglottic folds against the epiglottis in the lower larynx, and even epiglotto-pharyngeal consonants consisting of both those movements combined. Stops and trills can only be reliably produced at the epiglottis, while fricatives can only be reliably produced in the upper pharynx. When these are treated as distinct places of articulation, the term radical consonant may be used as a cover term, or people may speak of guttural consonants instead.

In many languages, pharyngeal consonants trigger retraction of neighboring vowels, but in others, it does not. Pharyngeals thereby differ from uvulars, which nearly always trigger retraction. For example, in Arabic, the vowel /a/ fronted to [æ] next to pharyngeals, but retracted to [ɑ] next to uvulars, as in حال [ħæːl] 'condition' with a pharyngeal fricative and a fronted vowel, vs. خال [χɑːl] 'maternal uncle' with a uvular consonant and a retracted vowel.

In addition to these consonantal sounds, consonants and vowels may be secondarily pharyngealized, and strident vowels are defined by an accompanying epiglottal trill.