1. epoch-making

adjective. highly significant or important especially bringing about or marking the beginning of a new development or era.

Rhymes with Glacial Epoch

2. glacial

adjective. ['ˈgleɪʃəl'] devoid of warmth and cordiality; expressive of unfriendliness or disdain.

3. glacial

adjective. ['ˈgleɪʃəl'] extremely cold.

4. epoch

noun. ['ˈɛpək, ˈiːpək'] a period marked by distinctive character or reckoned from a fixed point or event.

5. epoch

noun. ['ˈɛpək, ˈiːpək'] (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded.

6. epoch

noun. ['ˈɛpək, ˈiːpək'] a unit of geological time that is a subdivision of a period and is itself divided into ages.