organicism

Short definition from Wiktionary

Noun

1. 1
   The theory that disease is a result of structural alteration of organs.
2. 2
   The concept that everything is organic, or forms part of an organic whole.
3. 3
   The treatment of society or the universe as if it were an organism.
4. 4
   The theory that the total organization of an organism is more important than the functioning of its individual organs.