A Mathematical and Philosphical Dictionary
, whatever lies immediately by the side of another.
Adjacent Angle, in Geometry, is said of an angle when it is immediately contiguous to another, so that they have both one common side. And the term is more particularly used when the two angles have not only one common side, but also when the other two sides form one continued right line.
Adjacent bodies, in Physics, are understood of those that are near, or next to, some other body.