The term âcatapultâ is used to define a very wide variety of large machines for hurling projectiles and some of the more common variations include the trebuchet, which is a catapult that uses gravity and a seesaw effect to hurl its projectile.
A demyelinating disease is any condition that results in damage to the protective covering (myelin sheath) that surrounds nerve fibers in your brain and spinal cord.
Definition of DECLINATION. 1. : angular distance north or south from the celestial equator measured along a great circle passing through the celestial poles.2. : a turning aside or swerving.3.4. : a bending downward: inclination. 5. : a formal refusal.efinition of DECLINATION. 1. : angular distance north or south from the celestial equator measured along a great circle passing through the celestial poles. 2. : a turning aside or swerving. 3. 4.