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.
Tangent of a circle is a line outside a circle which touches the circle just at one point. Tangent of a circle makes a right angle to the radius of the circle at the point of tangency. Tangents drawn from the same point to a circle are equal in measure.