- the quality of being eccentric；an eccentric act or habit
noun: eccentricity, plural noun: eccentricities
- 1. the quality of being eccentric the eccentricity of his views
- ▪ an eccentric act or habit her eccentricities were amusing rather than irritating
- 2. technical deviation of a curve or orbit from circularity.
- ▪ a measure of the extent of deviation from circularity Halley's Comet has an eccentricity of about 0.9675