What is "annus"

Usage examples of "annus".

This cycle of change was of old called the Annus Magnus, or great year.

His annus mirabilis, the plague years-he discovered all the basics of modern science, the laws of motion, optics, calculus, gravity.

This was more than a little ironic since it was he, in his annus mirabilis of 1905, who had so persuasively explained how photons of light could sometimes behave like particles and sometimes like waves—.