Final answer:
The root 'poly' in the medical term 'polyadenopathy' means 'many'.
Step-by-step explanation:
The root in the medical term polyadenopathy may be defined as 'many'.
For example, 'poly' is a prefix derived from the Greek word 'polus' which means 'many'. It is commonly used in medical terminology to indicate multiple or many. In this case, 'adenopathy' refers to a disease involving the lymph nodes, so 'polyadenopathy' means the presence of multiple enlarged lymph nodes.
Therefore, the correct answer is c. poly many.
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