Source: Noto CJK

U+3343 Square Maikuro

U+3343 was added in Unicode version 1.1 in 1993. It belongs to the block U+3300 to U+33FF CJK Compatibility in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Symbol and is mainly used in the Katakana script.

The glyph is a square composition of the glyphs Katakana Letter Ma, Katakana Letter I, Katakana Letter Ku, Katakana Letter Ro. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. This katakana joins with other adjacent katakana to form a word. U+3343 offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

Micro (Greek letter μ, mu, non-italic) is a unit prefix in the metric system denoting a factor of 10⁻⁶ (one millionth). It comes from the Greek word μικρός (mikrós), meaning "small".
It is the only SI prefix which uses a character not from the Latin alphabet. In Unicode, the symbol is represented by U+03BC μ GREEK SMALL LETTER MU or the legacy symbol U+00B5 µ MICRO SIGN. The prefix "mc" is commonly used in healthcare or when the character "μ" is not available; for example, "mcg" commonly denotes a microgram. The letter "u" is sometimes used instead of "μ" when non-Latin characters are not available.

Representations

System	Representation
Nº	13123
UTF-8	E3 8D 83
UTF-16	33 43
UTF-32	00 00 33 43
URL-Quoted	%E3%8D%83
HTML hex reference	㍃
Wrong windows-1252 Mojibake	ãƒ
Encoding: GB18030 (hex bytes)	81 39 DD 31

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	SQUARE MAIKURO
Unicode 1 Name (na1)	SQUARED MAIKURO
Block (blk)	CJK Compatibility
General Category (gc)	Other Symbol
Script (sc)	Katakana
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	square
Decomposition Mapping (dm)	Katakana Letter Ma Katakana Letter I Katakana Letter Ku Katakana Letter Ro
Lowercase (Lower)	✘︎
Simple Lowercase Mapping (slc)	Square Maikuro
Lowercase Mapping (lc)	Square Maikuro
Uppercase (Upper)	✘︎
Simple Uppercase Mapping (suc)	Square Maikuro
Uppercase Mapping (uc)	Square Maikuro
Simple Titlecase Mapping (stc)	Square Maikuro
Titlecase Mapping (tc)	Square Maikuro
Case Folding (cf)	Square Maikuro
ASCII Hex Digit (AHex)	✘︎
Alphabetic (Alpha)	✘︎
Bidi Control (Bidi_C)	✘︎
Bidi Mirrored (Bidi_M)	✘︎
Composition Exclusion (CE)	✘︎
Case Ignorable (CI)	✘︎
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)	✘︎
Cased (Cased)	✘︎
Full Composition Exclusion (Comp_Ex)	✘︎
Default Ignorable Code Point (DI)	✘︎
Dash (Dash)	✘︎
Deprecated (Dep)	✘︎
Diacritic (Dia)	✘︎
Emoji Modifier Base (EBase)	✘︎
Emoji Component (EComp)	✘︎
Emoji Modifier (EMod)	✘︎
Emoji Presentation (EPres)	✘︎
Emoji (Emoji)	✘︎
Extender (Ext)	✘︎
Extended Pictographic (ExtPict)	✘︎
FC NFKC Closure (FC_NFKC)	Square Maikuro
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔︎
Grapheme Extend (Gr_Ext)	✘︎
Grapheme Link (Gr_Link)	✘︎
Hex Digit (Hex)	✘︎
Hyphen (Hyphen)	✘︎
ID Continue (IDC)	✘︎
ID Start (IDS)	✘︎
IDS Binary Operator (IDSB)	✘︎
IDS Trinary Operator and (IDST)	✘︎
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘︎
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘︎
Logical Order Exception (LOE)	✘︎
Modifier Combining Mark (MCM)	✘︎
Math (Math)	✘︎
Noncharacter Code Point (NChar)	✘︎
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Katakana Letter Ma Katakana Letter I Katakana Letter Ku Katakana Letter Ro
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Katakana Letter Ma Katakana Letter I Katakana Letter Ku Katakana Letter Ro
NFKD Quick Check (NFKD_QC)	No
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)	✘︎
Prepended Concatenation Mark (PCM)	✘︎
Pattern Syntax (Pat_Syn)	✘︎
Pattern White Space (Pat_WS)	✘︎
Quotation Mark (QMark)	✘︎
Regional Indicator (RI)	✘︎
Radical (Radical)	✘︎
Sentence Break (SB)	Other
Soft Dotted (SD)	✘︎
Sentence Terminal (STerm)	✘︎
Terminal Punctuation (Term)	✘︎
Unified Ideograph (UIdeo)	✘︎
Variation Selector (VS)	✘︎
Word Break (WB)	Katakana
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)	✔︎
Bidi Paired Bracket (bpb)	Square Maikuro
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Ideographic
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Square Maikuro
Script Extension (scx)
Vertical Orientation (vo)	Tu