Definition of syntropy:
(n) :
(philosophy of science) A tendency towards complexity, structure, order, organization of ever more advantageous and orderly patterns. Originally coined as a synonym for negentropy
(n) :
(psychology) A wholesome association with others.
(n) :
(pathology) The coalescence of two diseases into one.
(n) :
(anatomy) A formation of a series of similar parts having the same orientation (e.g., ribs, scales).