Definition of Epoch

Noun: epoch (epochs)  e-puk or 'e,pók [N. Amer], 'ee,pók or 'e,pók [Brit]

1. A period marked by distinctive character or reckoned from a fixed point or event
   - era
    
2. (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
   - date of reference
    
3. A unit of geological time that is a subdivision of a period and is itself divided into ages

See also:
epizooty
epochal

Anagrams containing the word epoch

eohpc hepoc chepo ochep poche