Definition of deltiology in English:

deltiology

noun

  • See deltiologist

    • ‘In the period before the First World War, deltiology was the largest collecting hobby.’
    • ‘As I understand it there is quite a bit of good deltiology literature available, so you may want to hunt for that to get more detailed information.’
    • ‘These materials clearly suggest the extent to which deltiology is driven not by art historians and museum professionals but by amateur and professional collectors.’
    • ‘Deltiology, the study of postcards, can involve the analysis of pigments, rag content of card stock, and other measurable parameters to determine the age of particular images.’