1. person of extensive learning; well-read person; polymath
Wikipedia definition
2. PolymathA polymath (Greek: πολυμαθής, polymathēs, "having learned much") is a person whose expertise spans a significant number of different subject areas. In less formal terms, a polymath (or polymathic person) may simply be someone who is very knowledgeable. Most ancient scientists were polymaths by today's standards. The common term Renaissance man is used to describe a person who is well educated or who excels in a wide variety of subjects or fields.
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