AskDefine | Define coincident

Dictionary Definition

coincident adj
1 occurring or operating at the same time; "a series of coincident events" [syn: coincidental, coinciding, concurrent, cooccurring, simultaneous]
2 matching point for point; "coincident circles" [syn: coinciding]

User Contributed Dictionary



  • a UK /ˈkəʊˌɪn.sɪ.dn̩t/ 1=/"k@U%In.Si.dn=t/


  1. In the context of "of two events": Occurring at the same time.
  2. In the context of "of two objects": Being in the same location.
  3. Being in accordance, matching.


occurring at the same time
  • Finnish: samanaikainen, yhtäaikainen
being in the same location
  • Finnish: sama paikka oleva
being in accordance
  • Finnish: yhteensopiva

See also

Extensive Definition

Coincident is a geometric term that pertains to the relationship between two vectors. Vectors consist of a "magnitude" and a "direction". Vectors can be said to be coincident when their direction is the same though the magnitude may be different; that is to say, they lie one on top of the other. If two coincident vectors were to be normalized, the resulting vectors would be identical. The dot product of two coincident vectors is the product of their magnitudes. The cross product of two coincident vectors is a vector of all zeros.

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Synonyms, Antonyms and Related Words

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