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Webster Dictionary (0.00 / 0 votes) Rate this definition: Amphi- a prefix in words of Greek origin, signifying both, of both kinds, on both sides, about, around
Leading a Double-Double Life The word amphibian comes from the Greek word amphibios, meaning a being with a double life. Some say their name refers to the fact that amphibians live in two places -- on land and in water. While dual residence is the rule for most amphibians, some species are strictly aquatic (water-dwelling) and some are strictly terrestrial (land-dwelling).