Science & TechnologyGreek → English
Sphere
A perfectly round three-dimensional shape.
The Greek roots
σφαῖρα
sphaîra
ball, globe
Literally: “a ball”
Follow a root:σφαῖρα19 words
The story of the word
The Greek word for a ball. Its meaning widened to any 'sphere of influence' or field of activity.
The same roots elsewhere
Other languages reached for exactly the same Greek pieces.
In a sentence
The planet is very nearly a perfect sphere.