# concentric

> English word · Adjective · frequency rank #31,929

## Definitions
1. Having a common center.
2. (of a motion) in the direction of contraction of a muscle. (E.g. extension of the lower arm via the elbow joint while contracting the triceps and other elbow extensor muscles; closing of the jaw while flexing the masseter).

## Etymology
From Middle English concentrik, from Middle French concentrique, from Medieval Latin concentricus, from Latin con- (“with, together”) + centrum (“circle, center”). Equivalent to con- + -centric. By surface analysis, con- + centre + -ic.

## Common misspellings (16)
`cconcentric`, `cnocentric`, `cocnentric`, `conccentric`, `concenntric`, `concenrtic`, `concentirc`, `concentrci`, `concentricc`, `concentrric`, `concenttric`, `concetnric`, `concnetric`, `conecntric`, `conncentric`, `ocncentric`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/concentric