commissuraladj.
/ˌkɒmᵻˈsjʊərəl/, /ˌkɒmᵻˈsjʊərl̩/, /ˌkɒmᵻˈsjɔːrəl/, /ˌkɒmᵻˈsjɔːrl̩/, /ˌkɒmᵻˈʃʊərəl/, /ˌkɒmᵻˈʃʊərl̩/, /ˌkɒmᵻˈʃɔːrəl/, /ˌkɒmᵻˈʃɔːrl̩/, U.S. /kəˈmɪʃʊrəl/, /ˌkɑməˈʃʊrəl/ Anatomy and Biology.
Of, relating to, or of the nature of a commissure, esp. of the nervous system.
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the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > commissure
commissural1815
callosal1852
callosomarginal1861
precommissural1864
supra-optic1900
chiasmatic1912
suprachiasmatic1938
1815 J. G. Spurzheim Physiognomical Syst. (ed. 2) ii. i. 68 Though the constituent parts of every organ are double, all similar parts of both sides are united in the middle line by commissural apparatus.
1836–9 Todd's Cycl. Anat. & Physiol. II. 224/1 The lips may be thrown forward by the contraction of the labial and commissural fibres.
1869 S. Baring-Gould Origin Relig. Belief I. i. 8 Distinct ganglia with commissural cords and nerves.
1870 J. D. Hooker Student's Flora Brit. Islands 149 Umbelliferæ...Normally there are 6 [vittæ] in each carpel, 4 between the primary ridges and 2 on the commissural face.
1916 Brain 39 37 Others have attempted to explain the macular escape in hemianopia by assuming that the two cortical macular centres are connected by callosal commissural fibres.
1958 Brit. Med. Jrnl. 6 Dec. 1401/2 Coincident with commissural fusion is the matting together of chordae tendineae below the [mitral] valve.
1993 Wilson Bull. 105 160 Nestlings were weighed, and their tarsus lengths, eighth primary lengths, and gape widths (commissural widths) were recorded.
2009 F. Charron & M. Tessier-Lavigne in G. Lemke Developmental Neurobiol. 468/1 To explore their involvement in commissural axon guidance, the expression of Cdon and Boc was examined in the developing mouse spinal cord.
This entry has been updated (OED Third Edition, December 2015; most recently modified version published online June 2022).
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adj.1815