Definitions for "Overpack"
Except when referenced to a packaging specified in Title 49 CFR Part 178, means an enclosure used by a single consignor to provide protection or convenience in handling of a package or to consolidate two or more packages.
An enclosure used by a single shipper to contain one or more packages and to form one handling unit for convenience of handling and stowage. (i.e. a warehouse pallet or an "E" container)
In aircargo: the assembling of several goods / items / packages by a shipping agent to form one packaging unit, which is easier to stow or handle. If dangerous cargo is included in such a unit, this has to be marked and handled according to the rules and regulations applicable to dangerous cargo shipments.
Keywords:  hermetically
a hermetically