PROTOCRANIUM
\pɹˌə͡ʊtə͡ʊkɹˈe͡ɪni͡əm], \pɹˌəʊtəʊkɹˈeɪniəm], \p_ɹ_ˌəʊ_t_əʊ_k_ɹ_ˈeɪ_n_iə_m]\
Definitions of PROTOCRANIUM
Sort: Oldest first
By Henderson, I. F.; Henderson, W. D.