The Disease: The Disease: Bacillus cereus can cause two distinct types of illnesses: 1) a diarrheal illness with an incubation time of approximately 10 to 16 hours, and 2) an emetic (vomiting) illness with an incubation time of one to six hours.
radius of curvature. n. (Mathematics) the absolute value of the reciprocal of the curvature of a curve at a given point; the radius of a circle the curvature of which is equal to that of the given curve at that point. See also centre of curvature.
A radius is the distance from the center of the circle to its boundary line. All radii of the same circle are equal to each other. A chord is a line between any two points on the outer line of the circle. A diameter is a chord that passes through the center. It is also the longest chord.