a. and sb. [f. CO- + ADJACENT.] Adjacent to each other mutually, contiguous; spec. in Philos., contiguous in thought: see prec. Also sb., Any object or idea so related to another.
1842. Sir W. Hamilton, in Reid’s Wks., 899/1. Such parts may be either coadjacent in space or coadjacent (coexistent or immediately consecutive) in time. Ibid., 897/1. These three laws … are the law of Similars, the law of Contraries, and the law of Co-adjacents. Ibid., 899/2. Dog may suggest Wolf as its coadjacent.
