frog3Pronunciation: /frɒɡ/Translate frog | into French | into German | into Italian | into Spanish Definition of frog noun an elastic horny pad growing in the sole of a horse’s hoof, helping to absorb the shock when the hoof hits the ground. a raised or swollen area on a surface: a bulge or frog is formed on the front of the bladeOrigin: early 17th century: perhaps from frog1; perhaps also influenced by Italian forchetta or French fourchette (see frog2)frog in other Oxford dictionaries Definition of frog in the US English dictionary