Question

the following combining form means bone. orchid/o arthr/o oste/o cardi/o

Explanation:

• "Orchid/o" relates to orchids (flowers), not bone.
• "Arthr/o" means joint.
• "Oste/o" is a combining form for bone.
• "Cardi/o" pertains to the heart.

Answer:

oste/o