centripetal
UK[sɛnˈtrɪpɪtl]US[sɛnˈtrɪpɪdl]
adj
Moving or tending to move towards a centre.
adj
(Physics) Denoting a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving.
Morpheme Breakdown
centri
petal
centri
centre
petal
seeking
Etymology
The word "centripetal" is a modern scientific coinage, constructed from classical Latin roots to precisely describe a physical concept. It combines centrum, meaning "centre," and the stem of petere, meaning "to seek or make for." The term was coined by Sir Isaac Newton in the 17th century, as a logical counterpart to "centrifugal" ("fleeing from the centre"). Literally meaning "centre-seeking," it elegantly captures the directional nature of the force that pulls a rotating object inward, transforming ancient roots of place and pursuit into a fundamental principle of physics.
Analysis
Structure: centri (centre) + petal (seeking)
- centri: From Latin centrum (centre). A combining form meaning "centre" or "central point".
- petal: From Latin petere (to seek, aim at, go towards). A combining form meaning "seeking" or "directed towards".
Examples
The centripetal force keeps the planets in orbit around the sun.
Water in a spinning bucket is pushed to the sides, while a centripetal force acts towards the axis of rotation.
There is a strong centripetal tendency in the nation's politics, drawing power back to the capital.