toroid

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈtɔːrɔɪd/US:USA pronunciation: respellingUSA pronunciation: respelling(tôr′oid, tōr′-)


WordReference Random House Unabridged Dictionary of American English © 2026
to•roid  (tôr′oid, tōr′-),USA pronunciation n. [Geom.]
  1. a surface generated by the revolution of any closed plane curve or contour about an axis lying in its plane.
  2. the solid enclosed by such a surface.
  • tor(us) + -oid 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::
toroid /ˈtɔːrɔɪd/ n
  1. a surface generated by rotating a closed plane curve about a coplanar line that does not intersect the curve
  2. the solid enclosed by such a surface
    See also torus
toˈroidal adj
'toroid' also found in these entries (note: many are not synonyms or translations):
doughnut - toroidal

Forum discussions with the word(s) "toroid" in the title:


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