eccentricity

noun ec·cen·tric·i·ty \ ˌek-(ˌ)sen-ˈtri-sə-tē \

Definition of eccentricity

plural eccentricities
1 a :the quality or state of being eccentric
b :deviation from an established pattern or norm; especially :odd or whimsical behavior
2 a :a mathematical constant that for a given conic section is the ratio of the distances from any point of the conic section to a focus and the corresponding directrix
b :the eccentricity of an astronomical orbit used as a measure of its deviation from circularity

Examples of eccentricity in a Sentence

  1. Some people weren't very tolerant of his eccentricity.

  2. Talking to her plants is one of her many eccentricities.

Recent Examples of eccentricity from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'eccentricity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of eccentricity

1545


ECCENTRICITY Defined for English Language Learners

eccentricity

noun

Definition of eccentricity for English Language Learners

  • : the quality of being strange or unusual in behavior

  • : an act or habit that is strange or unusual



Seen and Heard

What made you want to look up eccentricity? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

pleasing or sweet sound

Get Word of the Day daily email!

Test Your Vocabulary

Forms of Government Quiz

  • knupfer-painting-solon-before-croesus
  • A gerontocracy is rule by:
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!