What is the root word for lung in medical terminology?

The root word for lung in medical terminology is "pulmon/o." This root is derived from the Latin word "pulmo," which specifically refers to the lungs. It is commonly used in medical terms that pertain to lung function and diseases, such as "pulmonary," which relates to the lungs.

Understanding the context of other options helps clarify the meaning. "Pneum/o" relates to air or the lungs, often used for terms like "pneumonia," but is more focused on air and respiratory conditions broadly. "Thorac/o" pertains to the thorax, or the chest area, encompassing structures that include the lungs but is not specific to them. "Bronch/o" refers to the bronchi, which are the large air passages that branch off from the trachea into the lungs, thus representing a more specific part of the respiratory system rather than the lungs themselves.

Therefore, "pulmon/o" is the most accurate and specific root word for lung in medical terminology.