epochal

[adj] - highly significant or important especially bringing about or marking the beginning of a new development or era
Found on http://www.webdictionary.co.uk/definition.php?query=epochal

Epochal

Ep'o·chal adjective Belonging to an epoch; of the nature of an epoch. ' Epochal points.' Shedd.
Found on http://www.encyclo.co.uk/webster/E/58

epochal

epoch-making adjective highly significant or important especially bringing about or marking the beginning of a new development or era; `epochal decisions made by Roosevelt and Churchill`; `an epoch-making discovery`
Found on http://wordnetweb.princeton.edu/perl/webwn?s=epochal

Epochal

• (a.) Belonging to an epoch; of the nature of an epoch.
Found on http://thinkexist.com/dictionary/meaning/epochal/
No exact match found