SPHENOIDAL ANGLE
\sfˈɛnɔ͡ɪdə͡l ˈaŋɡə͡l], \sfˈɛnɔɪdəl ˈaŋɡəl], \s_f_ˈɛ_n_ɔɪ_d_əl ˈa_ŋ_ɡ_əl]\
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Virchow and Welcher's term for an a. formed by two lines meeting in the median line at the center of the transverse gropve of the optic commissure, one of which is drawn from the nasion and the other from the basion [B. N. A., angulus sphenoidalis].
By Smith Ely Jelliffe
Word of the day
dromaeognathae
- Prof. Huxley's classification a sub-order Carinatae (birds having sternum with keel), including but one family, Tinamidae tinamous. In this suborder the bones of upper jaw or skull are like what they struthious swift-footed birds, as ostrich.