supramarginaladj.
/ˌsuːprəˈmɑːdʒᵻnl/, /ˌsuːprəˈmɑːdʒn̩l/, /ˌsjuːprəˈmɑːdʒᵻnl/, /ˌsjuːprəˈmɑːdʒn̩l/, U.S. /ˌsuprəˈmɑrdʒən(ə)l/ Zoology and Anatomy.
Situated above the margin of a part; spec. (in the cerebrum) situated above the upper edge of the lateral sulcus (the Sylvian fissure); = supermarginal adj. 1.
ΚΠ
1849 E. Forbes in Figures & Descr. Brit. Org. Remains (Mem. Geol. Surv. U.K.: Decades) I. Pl. 7. 5 On one of the figures an appearance as if of a supramarginal anus is indicated.
1899 T. C. Allbutt et al. Syst. Med. VII. 433 The left visual word-centre..is now..supposed to be situated in the angular and possibly in part of the supramarginal convolution.
1951 Jrnl. Paleontol. 25 578 A new, subovoid, rigid, enrolled type of protaspid, bearing three pairs of supramarginal spines.
2007 M. S. de la Fuente in Z. Gasparini et al. Patagonian Mesozoic Reptiles iii. 55 It differs from Platetychelys oberndorferi..in having a cordiform shape to the carapace, an absence of supramarginal scutes, [etc.].
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1849