MATHEMATICAL GROUP
\mˌaθɪmˈatɪkə͡l ɡɹˈuːp], \mˌaθɪmˈatɪkəl ɡɹˈuːp], \m_ˌa_θ_ɪ_m_ˈa_t_ɪ_k_əl ɡ_ɹ_ˈuː_p]\
Sort: Oldest first
By Princeton University
Word of the day
Archaeozoic Era
- the time prior to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life