supramarginal
/ˌsuːprəˈmɑːdʒɪnl/ /ˌsuːprəˈmɑːdʒ(ə)nl/ /ˌsjuːprəˈmɑːdʒɪnl/Zoology and Anatomy
adjective
Situated above the margin of a part; specifically (in the cerebrum) situated above the upper edge of the lateral sulcus (the Sylvian fissure).
Origin
Mid 19th century; earliest use found in Edward Forbes (1815–1854), natural historian. From supra- + marginal.