1. To adopt or accept as a member, subordinate associate, or branch: The HMO affiliated the clinics last year.2. To associate (oneself) as a subordinate, subsidiary, employee, or member: affiliated herself with a new law firm.3. To assign the origin of.
INTRANSITIVE VERB:
To become closely connected or associated: The two unions voted to affiliate.
NOUN:
(--t, -t) A person, organization, or establishment associated with another as a subordinate, subsidiary, or member: network affiliates.
ETYMOLOGY:
Medieval Latin afflire, to adopt : Latin ad-, ad- + Latin flius, son; see dh(i)- in Appendix I.