What is the definition for logistics?

1 : the aspect of military science dealing with the procurement, maintenance, and transportation of military matériel, facilities, and personnel 2 : the handling of the details of an operation
n. (used with a sing. or pl. verb) The aspect of military operations that deals with the procurement, distribution, maintenance, and replacement of materiel and personnel. The management of the details of an operation. [French logistiques, from logistique, logic (perhaps influenced by loger, to quarter), from Medieval Latin logisticus, of calculation. See logistic.]