U+1DFD COMBINING ALMOST EQUAL TO BELOW

U+1DFD was added to Unicode in version 5.2 (2009). It belongs to the block Combining Diacritical Marks Supplement in the Basic Multilingual Plane.

This character is a Nonspacing Mark and inherits its script property from the preceding character.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Nonspacing Mark and is not mirrored. In text U+1DFD behaves as Combining Mark regarding line breaks. It has type Extend for sentence and Extend for word breaks. The Grapheme Cluster Break is Extend.

The Wikipedia has the following information about this codepoint:

Strident vowels (also called sphincteric vowels) are strongly pharyngealized vowels accompanied by (ary)epiglottal trill, where the larynx is raised and the pharynx constricted, so that either the epiglottis or the arytenoid cartilages vibrate instead of the vocal cords. That is, the epiglottal trill is the voice source for these sounds.

Strident vowels are fairly common in Khoisan languages, where they contrast with simple pharyngealized vowels. Stridency may be a type of phonation called harsh voice. A similar phonation, but without the trill, is called pressed voice or ventricular voice. The Bai language of southern China has a register system with allophonic strident and pressed vowels.

There is no official symbol for stridency in the IPA, though a superscript ⟨ʢ⟩ (for a voiced epiglottal trill) is often used. In some literature a subscript double tilde (≈) is sometimes used, as seen here on the letter ⟨a⟩ (⟨a᷽⟩):

This has been accepted into Unicode at code point U+1DFD.

Representations

System Representation
7677
UTF-8 E1 B7 BD
UTF-16 1D FD
UTF-32 00 00 1D FD
URL-Quoted %E1%B7%BD
HTML-Escape ᷽
Wrong windows-1252 Mojibake á·½

Elsewhere

Complete Record

Property Value
Age (age) 5.2
Unicode Name (na) COMBINING ALMOST EQUAL TO BELOW
Unicode 1 Name (na1)
Block (blk) Diacriticals_Sup
General Category (gc) Nonspacing Mark
Script (sc) Inherited
Bidirectional Category (bc) Nonspacing Mark
Combining Class (ccc) Below
Decomposition Type (dt) None
Decomposition Mapping (dm) ᷽
Lowercase (Lower)
Simple Lowercase Mapping (slc) ᷽
Lowercase Mapping (lc) ᷽
Uppercase (Upper)
Simple Uppercase Mapping (suc) ᷽
Uppercase Mapping (uc) ᷽
Simple Titlecase Mapping (stc) ᷽
Titlecase Mapping (tc) ᷽
Case Folding (cf) ᷽
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) ᷽
Bidi Paired Bracket Type (bpt) None
Cased (Cased)
Composition Exclusion (CE)
Case Ignorable (CI)
Full Composition Exclusion (Comp_Ex)
Changes When Casefolded (CWCF)
Changes When Casemapped (CWCM)
Changes When NFKC Casefolded (CWKCF)
Changes When Lowercased (CWL)
Changes When Titlecased (CWT)
Changes When Uppercased (CWU)
Dash (Dash)
Deprecated (Dep)
Default Ignorable Code Point (DI)
Diacritic (Dia)
East Asian Width (ea) Neutral
Extender (Ext)
FC NFKC Closure (FC_NFKC) ᷽
Grapheme Cluster Break (GCB) Extend
Grapheme Base (Gr_Base)
Grapheme Extend (Gr_Ext)
Hex Digit (Hex)
Hangul Syllable Type (hst) Not Applicable
Hyphen (Hyphen)
ID Continue (IDC)
Ideographic (Ideo)
ID Start (IDS)
IDS Binary Operator (IDSB)
IDS Trinary Operator and (IDST)
InMC (InMC)
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
ISO 10646 Comment (isc)
Joining Group (jg) No_Joining_Group
Join Control (Join_C)
Jamo Short Name (JSN)
Joining Type (jt) Transparent
Line Break (lb) Combining Mark
Logical Order Exception (LOE)
Math (Math)
Noncharacter Code Point (NChar)
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) ᷽
NFKC Quick Check (NFKC_QC) Yes
NFKD Quick Check (NFKD_QC) Yes
Numeric Type (nt) None
Numeric Value (nv) NaN
Other Alphabetic (OAlpha)
Other Default Ignorable Code Point (ODI)
Other Grapheme Extend (OGr_Ext)
Other ID Continue (OIDC)
Other ID Start (OIDS)
Other Lowercase (OLower)
Other Math (OMath)
Other Uppercase (OUpper)
Pattern Syntax (Pat_Syn)
Pattern White Space (Pat_WS)
Quotation Mark (QMark)
Radical (Radical)
Sentence Break (SB) Extend
Simple Case Folding (scf) ᷽
Script Extension (scx) Inherited
Soft Dotted (SD)
STerm (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) Extend
White Space (WSpace)
XID Continue (XIDC)
XID Start (XIDS)
Expands On NFC (XO_NFC)
Expands On NFD (XO_NFD)
Expands On NFKC (XO_NFKC)
Expands On NFKD (XO_NFKD)