R
volume
British pronunciation/ˈɑː/
American pronunciation/ˈɑɹ/

تعريف ومعنى "r"

01

نصف قطر, نصف قطر

the length of a line segment between the center and circumference of a circle or sphere
r definition and meaning
02

ر, الحرف ر

the 18th letter of the Roman alphabet
03

رنتجن, وحدة إشعاعية

a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
04

R (ثابت عالمي), R (في معادلة الغاز)

(physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
R
volume
British pronunciation/ˈɑː/
American pronunciation/ˈɑːɹ/
01

محدود لمن هم تحت سن 17, تصنيف R

describing a motion picture that people under the age of 17 need a guardian or parent in order to watch it

r

n
example
مثال
The movie was rated R for its dirty language and explicit scenes.
The circumference of a semicircle is C = π * r, showcasing the presence of pi in geometric calculations.
He used his vacation as a time for R and R, enjoying the outdoors and taking long naps.
He used his vacation as a time for R and R, enjoying the outdoors and taking long naps.
Language learners may spend time practicing the skill of rolling 'r' sounds to achieve accurate pronunciation in various languages.
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