Toral
/ˈtɔːrəl/noun
Relating to a torus, a doughnut-shaped surface or solid.
Did you know?In Latin, torus referred to a couch, cushion, or raised architectural molding before mathematics adopted it for a ring-shaped surface.
Etymological Timeline
Proto-Indo-European
PIE
*teuə-
“To swell or become enlarged”
Classical Latin
Latin
torus
“A cushion, couch, or rounded swelling; also a convex architectural molding”
17th Century
New Latin
torus
“A mathematical ring or surface generated by revolving a circle”
17th–18th Century
English
toral
“Relating to a torus”
Modern English
English
toral
“Of or relating to a torus in mathematics or geometry”