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.
Circle, Its Perimeter and Area. Circle is the set of points on a fixed distance from a given point; the latter is called the center while that distance is the radius of the circle. The word radius has also another meaning: a line segment from the center to any point on the circle is also called radius. A line joining any two points on a circle is called chord; a chord that passes through the center is known as a diameter diameter is formed by two radii.