[f. CO- + ADJACENCE, -CY.] The quality or state of being coadjacent, contiguity; spec. in Philos. a term for one of the Aristotelian laws of the association of ideas, in which the principle of relation is that of contiguity.
1842. Sir W. Hamilton, in Reid’s Wks., 900/1. The laws of Similarity and Contrast and the law of Coadjacency.
1850. Pop. Encycl. (O.). There are four modes of association, namely, by proximity in time, by similarity, by contrast, by coadjacence in space; or three, if proximity in time and coadjacence in space be taken under one head.
