eccentric — ONAD

eccentric /ikˈsentrik, ɪkˈsɛntrɪk

▸ adjective

1 (of a person or their behavior) unconventional and slightly strange:

my favorite aunt is very eccentric.

2 technical (of a thing) not placed centrally or not having its axis or other part placed centrally:

a servo driving an eccentric cam.

▪ (of a circle) not centered on the same point as another.

▪ (of an orbit) not circular.

▸ noun

1 a person of unconventional and slightly strange views or behavior:

he enjoys a colorful reputation as an engaging eccentric.

2 a disc or wheel mounted eccentrically on a revolving shaft in order to transform rotation into backward-and-forward motion, e.g. a cam in an internal combustion engine.

– DERIVATIVES
eccentrically /ikˈsentrək(ə)lē, ɪkˈsɛntrək(ə)li

/ adverb

– ORIGIN late Middle English (as a noun denoting a circle or orbit not having the earth precisely at its center): via late Latin from Greek ekkentros, from ek ‘out of’ + kentron ‘center’.