exo-, ex-

(Greek: outer, outside, external; used as a prefix)

1. A name by which one people or social group refers to another and by which the group so named does not refer to itself.
2. The name of a city or other place used in a foreign language which is not the same at the originating language; such as, Florence (English) for Firenze (Italian).

Additional examples: Londres (French) an exonym for London, Germany (English) is an exonym because Germans use the term Deutschland.

exopathy (s) (noun), exopathies (pl)
A disease originating outside the body: Jack found out in his research that the ailment exopathy didn't begin inside the body of the deceased person.
exoskeletal (adjective), more exoskeletal, most exoskeletal
Relating to the outer area of a body which encloses and protects the soft tissues and organs; such as, with many insects.
exoskeleton (s) (noun), exoskeletons (pl)
1. An exterior, or hard covering that supports and protects the outer structures of creatures: "Examples of exoskeletons include insects, lobsters, crabs, shrimps, barnacles, etc."
2. A device that humans can wear for greater strength: "The exoskeleton works on a principal of muscle-actuation."

"Built into exoskeletons are a number of pressure points, which, when triggered by even the slightest contact with a person's body, reinforce the movement of the arms, hands, feet, and legs similar to the power steering in cars which make natural rotational movements by the arms and hands with a car's steering wheel much easier."

1. Diffusion or osmosis from within outward; movement outward through a diaphragm or through vessel walls.
2. A movement of fluid toward a solution of lower concentration, as is the case when water percolates through a cell membrane into the medium surrounding the cell.
3. The flow of a substance from an area of greater concentration to one of a lower concentration (opposed to endosmosis).
A reference to the passage of a fluid through a semipermeable membrane toward a solution of lower concentration, especially the passage of water through a cell membrane into the surrounding medium.
1. The outermost region of the atmosphere of the earth or another planet.
2. An outermost region of the earth's atmosphere, estimated at 300-600 miles, or 500-1000 kilometers, where the density is so low that the mean free path of particles depends upon their direction with respect to the local vertical, being greatest for upward-traveling particles.

Its lower boundary is often called the critical level of escape, where gas atoms are so widely spaced that they rarely collide with one another and have individual orbits or where atmospheric pressure is very low because the gas atoms are very widely spaced and the temperature is very low.