Having ten feet or legs; pertaining to creatures with ten limbs.
From Greek 'deca' (ten) and 'pous' (foot) with the Latin adjective suffix '-ous'. This Greco-Latin hybrid became standard in scientific English during the 19th century.
While most decapodous creatures are aquatic, some land crabs in the tropics are also decapodous—and they can taste with their feet by walking through their food!
Complete word intelligence in one call. Free tier — 50 lookups/day.