fringe region

fringe region

[′frinj ‚rē·jən]
(meteorology)
The upper portion of the exosphere, where the cone of escape equals or exceeds 180°; in this region the individual atoms have so little chance of collision that they essentially travel in free orbits, subject to the earth's gravitation, at speeds imparted by the last collision. Also known as spray region.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Of course, the South East of England would then be a fringe region as Welsh interests would be given top priority.
Particles passing through this fringe region generate a burst of scattered light, the frequency of which is related linearly to the particle's speed.
The City of Casey (813.3 [km.sup.2]) is one of most rapidly growing regions in the fringe regions of the MMA (Figure 1).
Giovanni Ricci expands on this in comparing Alberti's treatment of the fringe regions of Terra d'Otranto and Friuli, where again comments on changing natural features outshine duller debates on nomenclature or ancient history.
These areas are fringe regions between stable and unstable transmission, which are affected to some degree by annual variations in rainfall but primarily by low ambient temperature.