RECTIGRADATIONS
\ɹˌɛktɪɡɹɐdˈe͡ɪʃənz], \ɹˌɛktɪɡɹɐdˈeɪʃənz], \ɹ_ˌɛ_k_t_ɪ_ɡ_ɹ_ɐ_d_ˈeɪ_ʃ_ə_n_z]\
Definitions of RECTIGRADATIONS
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"The origin of new cusps or cuspules which appear determinately, definitely, orthogenetically in both the upper and lower teeth, quite independently in different orders of mammals, and separated perhaps by vast intervals of time" (Osborn).
By Henderson, I. F.; Henderson, W. D.
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[Latin] \"The origin of new cusps or cuspules which appear determinately, definitely, orthogenetically in both the upper and lower teeth, quite independently in different orders of mammals, and separated perhaps by vast intervals of time\" (Osborn).
By J.H. Kenneth
