Adja'cenct. adj. [adjacens, Lat.] Lying close; bordering upon something.
It may corrupt within itself, although no part of it issue into the body adjacent. Bacon's Nat. History № 771.
Uniform pellucid mediums, such as water, have no sensible reflection but in their external superficies, where they are adjacent to other mediums of a different density. Newton's Opt.