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.
Terminology. 1  R = Radius. 2  PC = Point of Curvature (point at which the curve begins) 3  PT = Point of Tangent (point at which the curve ends) 4  PI = Point of Intersection (point at which the two tangents intersect) 5  T = Tangent Length. 6  C = Long Chord Length (straight line between PC and PT) 7  L = Curve Length.