umbilicaradj.

Etymology: < umbilic- (in umbilicus n.) + -ar suffix¹. Compare late Latin umbilīcāris (Tertullian).Previous versions of the OED give the stress as: umˈbilicar.

Geometry.

Of or belonging to the umbilicus.

ΘΚΠ

the world > relative properties > number > geometry > point > [adjective]

umbilical1728

polar1813

umbilicar1843

connectant1863

stigmatic1863

cuspidal1874

tropal1875

cusped1879

copunctal1896

open1896

perfect1897

closed1902

1843 MacCullagh in Proc. Royal Irish Acad. 1840–4 (1846) 2 458 A focal which is not modular may be called umbilicar, because it intersects the surface in the umbilics.

1843 MacCullagh in Proc. Royal Irish Acad. 1840–4 (1846) 2 469 A focal point which is at once modular and umbilicar.

1870 A. Cayley Coll. Math. Papers VIII. 326 The contacts arise, as will appear, from the umbilici of the ellipsoid, and may be termed ‘umbilicar centres’, or ‘omphaloi’.

This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2019).

单词	umbilicar
释义	umbilicaradj. Etymology: < umbilic- (in umbilicus n.) + -ar suffix¹. Compare late Latin umbilīcāris (Tertullian).Previous versions of the OED give the stress as: umˈbilicar. Geometry. Of or belonging to the umbilicus. ΘΚΠ the world > relative properties > number > geometry > point > [adjective] umbilical1728 polar1813 umbilicar1843 connectant1863 stigmatic1863 cuspidal1874 tropal1875 cusped1879 copunctal1896 open1896 perfect1897 closed1902 1843 MacCullagh in Proc. Royal Irish Acad. 1840–4 (1846) 2 458 A focal which is not modular may be called umbilicar, because it intersects the surface in the umbilics. 1843 MacCullagh in Proc. Royal Irish Acad. 1840–4 (1846) 2 469 A focal point which is at once modular and umbilicar. 1870 A. Cayley Coll. Math. Papers VIII. 326 The contacts arise, as will appear, from the umbilici of the ellipsoid, and may be termed ‘umbilicar centres’, or ‘omphaloi’. This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2019). < adj.1843
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