Belonging to or characteristic of a culture postulated to exist in either the Eolithic or the Lower Palaeolithic age in Belgium and characterized by a lack of hand-axe tools. Compare "Acheulean", "Chellean", "Clactonian".
Subsequent research determined that the finds did not indicate a distinctive local culture, and questioned their dating and typology.
The Mesvinian period, culture, or industry. Usually with the.
Early 20th century. From French Mesvinien from Mesvin, the name of a town in Belgium near Mons, where flint objects believed to be artefacts were found in 1867 + -ien.