Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

toroid

play
noun to·roid \ˈtȯr-ˌȯid\

Definition of toroid

  1. 1 :  a surface generated by a closed plane curve rotated about a line that lies in the same plane as the curve but does not intersect it

  2. 2 :  a body whose surface has the form of a toroid



Origin of toroid

New Latin torus


First Known Use: 1886


Seen and Heard

What made you want to look up toroid? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

immature or lacking adult sophistication

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin angry prompt oily
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ