PROTOCRANIUM
\pɹˌə͡ʊtə͡ʊkɹˈe͡ɪni͡əm], \pɹˌəʊtəʊkɹˈeɪniəm], \p_ɹ_ˌəʊ_t_əʊ_k_ɹ_ˈeɪ_n_iə_m]\
Definitions of PROTOCRANIUM
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By Henderson, I. F.; Henderson, W. D.
Word of the day
ammonium chlorid
- Sal ammoniac, NH4CI, found native volcanic regions small quantities sea water and formed artificially by the direct combination of ammonia hydrochloric acid gas. Used in bronchitis.