a relation between any two entities such that if they had not been in this relation to each other, the nature of each would not necessarily have been different.
What’s Wrong With The Word “Addict”?The word addict dates back to at least the 1500s, adapted from the Latin addictus, meaning "assigned, surrendered." But, if experts in drug addiction treatment have their way, use of the word addict as a noun will soon see its end date.
Compare internal relation.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019