WordReference Random House Unabridged Dictionary of American English © 2026
fronto-,
- a combining form used in compound words referring to the frontal bone or lobe (frontoparietal) or, in meteorological terms, to a frontal zone (frontogenesis).
- Latin front- (stem of frōns) forehead, front + -o-
'fronto-' also found in these entries (note: many are not synonyms or translations):