(ˌ)sərˌkəmvəˈlüshən, ˌsərkəmvōˈlüshən noun
( -s )
Etymology: Middle English circumvolucioun, from Medieval Latin circumvolution-, circumvolutio, from Latin circumvolutus + -ion-, -io -ion
1.
a. : a turning or winding around a center or axis : rotation , gyration
b. : a single revolution or rotation
2.
a. : a folding or twisting of one thing about another
b. : a winding in an inward spiral (as in the scroll of an Ionic capital)
c. : a single turn of such a folding or winding
the circumvolutions of a boa constrictor
the circumvolutions of a snail's shell