·
See also: ⋅ [U+22C5 DOT OPERATOR], • [U+2022 BULLET], ‧ [U+2027 HYPHENATION POINT], ・ [U+30FB KATAKANA MIDDLE DOT], and ･ [U+FF65 HALFWIDTH KATAKANA MIDDLE DOT]
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Translingual
Description
A dot.
Symbol
·
- (mathematics) The product operator.
- (in a few countries, such as the UK) A decimal point.
- 3·14, £1,234·99
- (mathematics, vectors) The dot product operator.
- (1,2,5) · (3,4,−1) = 6
- (Gregg shorthand) the letter a
- (mathematics) Indicates what elements can vary.
- If we have f(x,y) we can analyze the properties of f(·,y) which is a function of x found by fixing a particular y.
- (chemistry) Indicates addition compounds.
- BF3·NH3
- See ・ for the middle dot used in Japanese katakana.
Usage notes
- (decimal point): Many Britons employ the American decimal point ⟨.⟩ owing to a general lack of support for the middot character on computers. It remains common in writing done by hand.
- (Gregg shorthand, letter a): · (“dot”) is the shorthand form of a in Centennial, Series 90, DJS, Simplified, Anniversary, and Pre-Anniversary shorthand.
- (addition compound): The IUPAC Recommendations for Nomenclature of Organic Chemistry[1] state: “Centre dots in formulae of (formal) addition compounds, including hydrates, adducts, clathrates, double salts and double oxides, separate the individual constituents. The dot is written in the centre of the line to distinguish it from a full stop (period).”
Synonyms
See also
- apostrophe ( ' ) ( ’ )
- curly brackets or braces (US) ( { } )
- square brackets or brackets (US) ( [ ] )
- colon ( : )
- comma ( , )
- dashes ( ‒ ) ( – ) ( — ) ( ― )
- ellipsis ( … )
- exclamation mark ( ! )
- fraction slash ( ⁄ )
- guillemets ( « » ) ( ‹ › )
- hyphen ( - ) ( ‐ )
- interpunct ( · )
- interrobang (rare) ( ‽ )
- brackets or parentheses (US, Canada) ( ( ) )
- full stop or period (US, Canada) ( . )
- question mark ( ? )
- quotation marks (formal) ( ‘ ’ ‚ ) ( “ ” „ )
- quotation marks (informal, computing) ( " ) ( ' )
- semicolon ( ; )
- slash or stroke (UK) ( / )
- space ( ] [ )
References
Asturian
Diacritical mark
- A diacritical mark of the Latin script, called puntu inferior (“dot below”) in Asturian, and found on Ḥ/ḥ and Ḷ/ḷ.
Catalan
Diacritical mark
- A diacritical mark of the Latin script, called punt volat (“flown dot”) in Catalan, and found in the combination l·l to distinguish it from the digraph ll'.
Chinese
Punctuation mark
- Separates first and last names in foreign proper names.
- Separates the title of a literary work or collection from the title of a section.
- Separates the name of a fixed melody or format from the title of a poem or song.
- Separates items in a list in titles.
- Separates the month from the day in events, commemorations, etc. named after dates, only used after January (一 (yī)), November (一一 (yīyī)) and December (一二 (yī'èr)) when hanzi are used.
Usage notes
- Rarely used in general. Is used similarly to the Japanese symbol ・.
Greek
Punctuation mark
- (grammar) The raised point (άνω τελεία (áno teleía)) or Greek ; (semicolon).
Usage notes
- · can be uniquely represented by the Unicode character U+0387 (GREEK ANO TELEIA).
- In many places, including on Wiktionary, U+0387 is automatically converted to the MIDDLE DOT (U+00B7). This is because U+0387 is converted to U+00B7 by all Unicode normalizations.
- In some fonts, U+0387 (·) is positioned higher than U+00B7 (·), similarly to the top point of a colon (:) or semicolon (;).
See also
Irish
Diacritical mark
- A diacritical mark of the Latin script, called ponc séimhithe (“lenition dot”) in Irish, and found on Ḃ/ḃ, Ċ/ċ, Ḋ/ḋ, Ḟ/ḟ, Ġ/ġ, Ṁ/ṁ, Ṗ/ṗ, Ṡ/ṡ and Ṫ/ṫ. (generally used only in Gaelic script; very rare in Latin script)
Latin
Punctuation mark
- Used to indicate a word boundary.
- ^ Nomenclature of Organic Chemistry – IUPAC Recommendations, 2005, http://old.iupac.org/publications/books/rbook/Red_Book_2005.pdf