PROTEGULUM
\pɹˈə͡ʊtɡjʊləm], \pɹˈəʊtɡjʊləm], \p_ɹ_ˈəʊ_t_ɡ_j_ʊ_l_ə_m]\
Definitions of PROTEGULUM
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The semicircular or semielliptical embryonic shell of Brachiopods.
By Henderson, I. F.; Henderson, W. D.
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[Latin] The semicircular or semielliptical embryonic shell of Brachiopods (zool.).
By J.H. Kenneth
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dust storm
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