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supracommissure
supracommissure n. 
/ˌsuːprəˈkɒmᵻʃʊə/, /ˌsuːprəˈkɒmᵻsjʊə/, /ˌsjuːprəˈkɒmᵻʃə/, /ˌsjuːprəˈkɒmᵻʃʊə/, /ˌsjuːprəˈkɒmᵻʃjʊə/,
Brit. /ˌsuːprəˈkɒmᵻʃə/
, /ˌsuːprəˈkɒmᵻʃə//ˌsuːprəˈkɒmᵻʃʊə//ˌsuːprəˈkɒmᵻsjʊə//ˌsjuːprəˈkɒmᵻʃə//ˌsjuːprəˈkɒmᵻʃʊə//ˌsjuːprəˈkɒmᵻʃjʊə/U.S. /ˌsuprəˈkɑməˌʃʊr/
now rare a commissure of nerve fibres above and in front of the pineal gland./ˌsuprəˈkɑməˌʃʊr/ΘΚΠ
the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > commissure
commissure1695
corpus callosum1706
optic commissure1848
optic chiasma1856
supracommissure1886
1885 H. F. Osborn in Proc. Acad. Nat. Sci. Philadelphia 1884 270 In the discovery of the supracommissura and the invariable position of the recessus pinealis, between this and the postcommissura, we find unmistakable anatomical evidence for Goette's conclusions.]
1886 Jrnl. Compar. Med. & Surg. 7 226 The post-commissure [in the dolphin] is enormous..and the supra-commissure, to which, as far as we know Wilder first directed attention, is exceedingly well developed also.
1917 Jrnl. Compar. Neurol. 28 100 There is in most cases a well marked suprapineal recess extending upward and backward over the supracommissure.
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