Final answer:
The CF ather/o means 'fatty plaque,' which relates to atherosclerosis, the condition where fatty plaques build up in the coronary arteries, leading to heart problems.
Step-by-step explanation:
The combining form (CF) ather/o refers to fatty plaque. This is typically associated with atherosclerosis, which is a condition characterized by the buildup of fatty plaques in the coronary arteries of the heart. These plaques can lead to decreased blood flow and an increased risk of cardiovascular events, such as heart attacks and strokes. The other terms listed, such as atrium, vessel, antrum, and embolus, all relate to cardiovascular anatomy or pathology, but they do not reflect the meaning of the CF ather/o.