Kevin Gardiner (UWC Atlantic College), class of 1977, attended the college on a South Glamorgan Education Authority Scholarship and went on to study economics at the LSE and Cambridge.
(comparative more dilutional, superlative most dilutional) 1  Of or pertaining to dilution. 2  That dilutes.
Constriction is a narrowing or closing of a passageway. Constriction is a key regulation step for many different processes in the body, and is usually coupled with dilation, which is an opening or widening of a structure or passageway to facilitate the needs of the body under given conditions.