[ noun ] the act of rotating as if on an axis
"the rotation of the dancer kept time with the music"
Used in print(R. P. Jerrard, "Inscribed squares in plane curves"...)
But **f is just the curve **f translated without rotation through a small arc , for **f is always obtained by rotating C through exactly 90 ` .
For it is clear that the total number of ordinary intersections of C and **f must be even ( otherwise , starting in the interior of C , **f could not finally return to the interior ) , and the center of rotation at t is the argument of the function , not a value .
[ noun ] a single complete turn (axial or orbital)
"the plane made three rotations before it crashed" "the revolution of the earth about the sun takes one year"