Diameter: meaning, definitions and examples
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diameter
[ daɪˈæmətər ]
geometric measurement
Diameter refers to a straight line that passes through the center of a circle or sphere, connecting two points on its circumference or surface. It is essentially the length of this line segment. The diameter is twice the length of the radius, which is the distance from the center to the circle's edge. It is a fundamental concept in geometry, commonly used in calculations involving circles and spheres.
Synonyms
Examples of usage
- The diameter of the circular table is 1.5 meters.
- To find the area of the circle, use the diameter in the formula.
- The diameter of the Earth is about 12,742 kilometers.
- You need to measure the diameter to ensure the fitting will work.
Translations
Translations of the word "diameter" in other languages:
🇵🇹 diâmetro
🇮🇳 व्यास
🇩🇪 Durchmesser
🇮🇩 diameter
🇺🇦 діаметр
🇵🇱 średnica
🇯🇵 直径
🇫🇷 diamètre
🇪🇸 diámetro
🇹🇷 çap
🇰🇷 직경
🇸🇦 قطر
🇨🇿 průměr
🇸🇰 priemer
🇨🇳 直径
🇸🇮 premer
🇮🇸 þvermál
🇰🇿 диаметр
🇬🇪 დიამეტრი
🇦🇿 diametr
🇲🇽 diámetro
Etymology
The term 'diameter' originates from the Latin word 'diametros', which comes from the Greek 'diametros'. The Greek word is a combination of 'dia,' meaning 'across' or 'through', and 'metron,' meaning 'measure.' This reflects the fundamental characteristic of the diameter as a measure of distance across a circle or sphere. Historically, the concept of diameter has been crucial in ancient geometry, with mathematicians such as Euclid discussing properties of circles and shapes. As mathematical principles evolved, the use of diameter became integral in various scientific disciplines, including physics and engineering, to describe circular objects and phenomena. The precision in measuring diameter is vital in fields such as manufacturing, construction, and astronomy.