Definition of outsert in English:

outsert

noun

  • A piece of promotional material that is placed on the outside of a package, publication, or other product.

    • ‘It was an advertising program consisting of supplements and outserts targeting key CT-system purchasers and users, and it was achieved by working with the top-tier diagnostic imaging publication in our industry.’

Origin

1960s: from out + insert.

Pronunciation:

outsert

/ˈoutsərt/