The word 药物 is formed by combining two meaningful characters: 药, which means "medicine" or "healing substance", and 物, which means "thing" or "substance". Together, they conceptually create a compound where 药 specifies the core category of "healing", and 物 broadens it to encompass the general, tangible "substance" or "matter" that constitutes it. This fusion yields the complete idea of a "medicinal substance", intuitively capturing the physical and functional essence of drugs or pharmaceuticals as material things used for treatment.