R - Similar and Opposite Words

What is another word for R ?

Here are the synonyms for R , a list of similar words for R from our thesaurus that you can use

Noun

the length of a line segment between the center and circumference of a circle or sphere

Synonyms

• r
• radius

More generic

• length

More specific

• radius of curvature
• semidiameter

Related

• diam
• diameter

Noun

the 18th letter of the Roman alphabet

Synonyms

• R

More generic

• alphabetic character
• letter
• letter of the alphabet

Related

• Latin alphabet
• Roman alphabet

Noun

(physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole

Synonyms

• R
• gas constant
• universal gas constant

More generic

• constant

Noun

a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air

Synonyms

• R
• roentgen

More generic

• radioactivity unit

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