From the Greek word 'iatros' meaning healer; which combining form relates to a physician or medicine?

• A. Stomat/o
• B. Iatr/o
• C. Psych/o
• D. Medi/o

Answer: (B)

The main idea is identifying the Greek root that directly signals medical care or a physician. The combining form iatr/o comes from iatros, meaning healer, and it is used to refer to medical treatment and physicians. That makes it the best fit for “physician or medicine,” as seen in terms like iatrogenic or iatro- forming parts of medical terminology. The other roots point to different body parts or concepts: stomat/o refers to the mouth, psych/o to the mind, and medi/o to the middle (not medicine). So, iatr/o is the form that specifically relates to physician or medicine.