semi-cylindern.
The half of a cylinder divided longitudinally.
ΘΚΠ
the world > space > shape > curvature > curved three-dimensional shape or body > cylinder > [noun] > cylindrical object > half of a cylinder
semi-cylinder1666
1666 J. Collins Let. in S. P. Rigaud & S. J. Rigaud Corr. Sci. Men 17th Cent. (1841) (modernized text) II. 461 In the concave of the said semicylinder.
1777 G. Forster Voy. round World I. 228 This and the first trumpet were both made of two hollow semicylinders of wood.
1841 S. Clegg Treat. Coal-gas 60 The scoop is a semi-cylinder made of thin plate iron.
1880 C. Darwin & F. Darwin Power of Movement in Plants 81 One of the two cotyledons failed to produce a petiole, whilst the other produced one consisting of an open semi~cylinder ending in a sharp point.
Derivatives
semicyˈlindric adj.
ΘΚΠ
the world > space > shape > curvature > curved three-dimensional shape or body > cylinder > [adjective] > half of cylinder
plano-cylindrical1712
semi-cylindrical1731
semicylindric1760
hemicylindrical1854
1760 J. Lee Introd. Bot. iii. v. 181 Semicylindric, like a halved Cylinder; when they are round on one Side, and flat on the other.
1793 Philos. Trans. (Royal Soc.) 84 10 The semicylindric cavity.
1870 J. D. Hooker Student's Flora Brit. Islands 147 Water-Purslane..placentas semicylindric.
semi-cyˈlindrical adj. of the form of a semi-cylinder.
ΘΚΠ
the world > space > shape > curvature > curved three-dimensional shape or body > cylinder > [adjective] > half of cylinder
plano-cylindrical1712
semi-cylindrical1731
semicylindric1760
hemicylindrical1854
1731 N. Bailey Universal Etymol. Eng. Dict. (ed. 2) Semicylindrical.
1801 Philos. Trans. (Royal Soc.) 91 131 The thermometer, having its scale~board..of a semicylindrical form.
1842 J. Gwilt Encycl. Archit. i. ii. 88 Semicylindrical vaults.
This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2019).
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n.1666