The shape of something rotating; a vortex.
One 360° turn in a spring or similar helix.
A mathematical operation on two functions that produces a third that expresses how the shape of one is modified by the other; the integral of the product of the two functions after one is reflected about the y-axis and shifted along the x-axis.
Any of the folds on the surface of the brain.
A twist or fold.
The state or condition of being convoluted.
A function which maps a tuple of sequences into a sequence of tuples.
Any rotating movement; a spin.
A little twist of some substance; a swirl.
A movement where a person spins round elegantly; a pirouette.
A prison guard.
To twist round.
To pitch.
To rotate rapidly.
To perform a twirl.