r

Definition : radius
Category : Academic & Science » Mathematics
Country/Region : Worldwide Worldwide
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Type :
Symbol

What does r mean?

r in circle Radius (r) is a straight line extending from the center to the circumference of a circle or sphere. It is also a measure of distance from the center of a circle to its circumference.

20 more results for r

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Worldwide R Right
Academic & Science
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Language & Linguistics
South Africa R South African Rand
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Worldwide R Resistor
Academic & Science
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Electronics
Worldwide R Reverse
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Automotive
Worldwide R electrical resistance
Academic & Science
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Electrical
Worldwide R gas constant
Academic & Science
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Chemistry
Worldwide R Real number
Academic & Science
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Mathematics
Worldwide R Refrigerant
Academic & Science
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Engineering
Worldwide R Reproduction number
Medical
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Diseases & Conditions
Worldwide r are
Miscellaneous
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Chat & Messaging
Worldwide R Reflectance
Academic & Science
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Physics
Worldwide R spectral resolution
Academic & Science
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Astronomy & Space Science
Worldwide R Racing
Technology
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Automotive
Worldwide R Registered trademark
Business
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Patents & Trademarks
Worldwide r coefficient of relationship
Academic & Science
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Biology
Worldwide R Roentgen
Academic & Science
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Units
India R Raipur Junction
Transport & Travel
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IRCTC Station Codes
Worldwide R Ricci curvature
Academic & Science
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Mathematics
Worldwide R Ronna
Academic & Science
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Units
Worldwide r ronto
Academic & Science
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Units

Frequently Asked Questions

What is the full form of r in Geometry?

The full form of r is radius

What are the full forms of r in Academic & Science?

radius | Right | Resistor | electrical resistance | gas constant | Real number | Refrigerant | Reflectance | spectral resolution | coefficient of relationship | Roentgen | Ricci curvature | Ronna | ronto

What are the full forms of r in Worldwide?

radius | Right | Resistor | Reverse | electrical resistance | gas constant | Real number | Refrigerant | Reproduction number | are | Reflectance | spectral resolution | Racing | Registered trademark | coefficient of relationship | Roentgen | Ricci curvature | Ronna | ronto

Translation

Translate radius into other languages

Citations Formatting rules vary by edition. Please verify against your required style manual.

APA Style

FullForms. (2026). r. FullForms.com. https://fullforms.com/r

Chicago Style

FullForms. "r." Accessed June 4, 2026. https://fullforms.com/r.

Harvard Style

FullForms (2026) 'r', FullForms.com. Available at: https://fullforms.com/r (Accessed: 04 June 2026).

MLA Style

"r." FullForms.com, 2026, https://fullforms.com/r. Accessed 04 Jun. 2026.