Modifiers matching limb:

• robotic,
• prosthetic,
• moving,
• disabled,
• injured,
• main,
• individual,
• straight,
• artificial,
• cuddly,
• lower,
• smaller,
• major,
• small,
• mammalian,
• affected,
• biological,
• supporting,
• soft,
• larger,
• exposed,
• distal,
• broken,
• active,
• entire,

Simple categories matching robotic:

• system,
• explorer,
• activity,
• equipment,
• part,
• structure,
• device,
• behaviour,
• application,
• event,
• vehicle,
• component,
• feature,
• task,
• limb,
• devices,