1. coherency(n = noun.state) coherence, cohesion, cohesiveness - the state of cohering or sticking together;
is a kind of connectedness, connection, link
has particulars: consistency, continuity
Derived forms verb cohere1, adjective coherent4
2. coherency(n = noun.attribute) coherence - logical and orderly and consistent relation of parts;
is a kind of comprehensibility, understandability
Derived forms adjective coherent1, adjective coherent2
1. A sticking or cleaving together; union of parts of the same body; cohesion. [1913 Webster]
2. Connection or dependence, proceeding from the subordination of the parts of a thing to one principle or purpose, as in the parts of a discourse, or of a system of philosophy; a logical and orderly and consistent relation of parts; consecutiveness. [1913 Webster]
"Coherence of discourse, and a direct tendency of all the parts of it to the argument in hand, are most eminently to be found in him." [1913 Webster]
3. the state of cohering. [WordNet 1.5]