Gallo-Roman adjective 2noun 1forms 3 adjective2 •Pertaining to the period of Roman rule in Gaul, 50 BC–486 AD. •Pertaining to the Gallo-Romans. noun1 •(historical) A Romanized Gaul, i.e. a Gaulish person who adopted or adapted the culture, language etc. of the Roman Empire following the establishment of Roman rule in the region of Gaul. formsGallo-Romans · more Gallo-Roman · most Gallo-Roman