(Freemasonry) A Masonic organization that one can join after completing the three basic Blue Lodge degrees (Entered Apprentice, fellowcraft, and Master Mason), and which offers more advanced teaching.

Alternative form of out-of-body

A statistical measure of the weight of a person scaled according to height, used to estimate if a person is underweight or overweight. BMI units are defined as kg/m² ≈ 703*lb/in².

(physics) The study of the motion of rigid bodies under the influence of forces.

Any of a class of neuropeptides present in the cerebral ganglia of certain hermaphrodite freshwater snails

(mathematics) The problem of predicting the motion of a group of celestial objects that interact with each other gravitationally.

plural of body cavity search

(law) A search performed by law enforcement on a criminal suspect to insure that the suspect is not hiding anything in a body cavity.

(gymnastics) A position with a posterior pelvic tilt, i.e. with the lower back held flat

The problem of finding the motion, relative to one another, of two objects, where the position of each affects the motion of the other.