Homothetic (∻) is the Unicode character at U+223B in Mathematical Operators. Official name: HOMOTHETIC. It marks homothety — a geometric scaling relation between figures that share a center and proportional sizes.
Remember
Character ∻
Unicode U+223B
Named entity ∻
Hex entity ∻
Decimal ∻
CSS escape \223B
Meaning homothety / geometric scaling relation
Not the same ∼ (∼) · ≈ (≈) · U+034B (combining)
Prefer ∻ in HTML. Hex ∻, decimal ∻, or typing ∻ in UTF-8 also work. For a tilde-style similarity operator, prefer ∼; for approximate equality, prefer ≈.
Reference
Quick Reference
One table for every form you will actually use.
Form
Code
Where it goes
Named entity
∻
HTML markup (preferred)
Hex entity
∻
HTML markup
Decimal entity
∻
HTML markup
Direct character
∻
HTML text (UTF-8)
CSS escape
\223B
Stylesheet content
When to Use Which
Situation
Use
Homothety / geometric scaling relation between figures
Built with Named: ∻
Built with Hex: ∻
Built with Decimal: ∻
Built with CSS: ∻
Typed: ∻
F ∻ G
Tilde operator: ∼
How It Works
1. Named:∻ is the preferred HTML form for U+223B → ∻.
2. Hex / decimal:∻ and ∻ insert the same code point. Same visual as named.
3. CSS: use \223B in content (not an HTML entity). #point::after appends ∻.
4. Typed: paste ∻ in a UTF-8 document when you need this operator. Prefer aria-label or nearby prose such as “homothetic” so meaning is clear to everyone.
Pitfalls & Tips
Common mistakes when working with homothetic.
Name
Prefer ∻
HTML5 defines ∻ for U+223B. Prefer it over inventing names like &homothetic;. Hex and decimal still work when needed.
∼
Not the tilde operator
∼ is ∼ (U+223C). Homothetic is ∻. Related wavy look — different geometry meaning and code point.
U+034B
Not Homothetic Above
Homothetic Above (U+034B) is a combining diacritic and needs a base letter. This page is the standalone math operator ∻.
≈
Not almost equal
≈ is ≈ (U+2248). Use that for approximate equality; use ∻ for homothety relations.
Font
Font coverage
Some fonts omit Mathematical Operators. If ∻ is missing, fall back to a math-capable font or spell out “homothetic”.
CSS vs HTML
Do not mix escapes
\223B belongs in CSS strings. ∻ / ∻ / ∻ belong in HTML.
a11y
Add accessible text
Screen readers may not announce ∻ clearly. Prefer aria-label="homothetic" or nearby prose for relations.
Semicolon
End references
Always finish entities with ; — write ∻, not &homtht.
Compatibility
Browser Support
Homothetic (U+223B) and its entity forms (∻, ∻, ∻, CSS \\223B) are supported in all mainstream browsers. Visible glyphs depend on Mathematical Operators font coverage.
✓ Universal support
Homothetic (∻)
Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+223BFull support
Bottom line: Prefer ∻ in HTML. Use ∻ / ∻ when numeric form is required, and \\223B only inside CSS content.
Remember
Key Takeaways
Unicode: homothetic is U+223B (decimal 8763) — glyph ∻.
HTML: prefer ∻ — also ∻ / ∻ / type ∻.
CSS: use \223B inside content for generated text.
Meaning: ∻ ≠ ∼ / ≈ / U+034B — use for homothety relations.
Use ∻ (named), ∻ (hex), ∻ (decimal), type ∻ directly in UTF-8, or the CSS escape \223B in content. Prefer ∻ in normal HTML.
U+223B (HOMOTHETIC). Hex 223B, decimal 8763. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. Use ∻ — the preferred form in HTML markup. Numeric forms ∻ and ∻ also work.
Use it in geometry text for homothety or scaling-relation notation between figures. For similarity-style tilde, prefer ∼. For approximate equality, prefer ≈ or ≅. For a combining diacritic, see Homothetic Above (U+034B).
HTML entities (∻, ∻, or ∻) go in markup. The CSS escape \223B goes in stylesheet strings (usually content on ::before/::after).
No. Homothetic is U+223B (∻ / ∻). Tilde operator is U+223C (∼ / ∼). Almost equal is U+2248 (≈ / ≈). Homothetic Above is combining U+034B. Related look — different code points and uses.
🤔
Did you know?
Homothetic is Unicode U+223B (decimal 8763) — glyph ∻ in Mathematical Operators (official name HOMOTHETIC). HTML5 names it ∻. Prefer ∻ in markup. It marks homothety / geometric scaling relations and is not the tilde operator ∼ (∼), almost equal ≈ (≈), or the combining Homothetic Above mark (U+034B).
