(in certain arthropods, especially crustaceans) a limb used for walking.
- ‘Large U. minax males use walking legs or the enlarged claw to capture prey feeding on moist sand flats.’
- ‘The next four pairs of appendages are the walking legs. These are cylindrical and spiny and increase in size with each pair.’
- ‘Lobsters have a large segmented tail, five pairs of walking legs and six pairs of small limbs around the mouth to aid in feeding and sensory perception.’
- ‘The second pair of appendages, the pedipalps, resemble walking legs.’
- ‘Decapod crustaceans readily autotomize their walking legs and claws in response to injury or predation; lost appendages are regenerated before the next molt.’