both hands and feet; all four limbs
Refers to the hands and feet together, often used in contexts of binding, exercising, or describing the extremities.
The criminal bound his hands and feet.
Swimming is an exercise that uses both arms and legs well.
Compound of 両 (ryō, 'both') + 手 (te, 'hand') + 足 (ashi, 'foot'). The reading りょうてあし is a straightforward combination of the readings of the individual kanji.