from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A person with broad knowledge.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. someone gifted or learned in multiple disciplines.
- n. a universal scientist (generally in use to describe such a person when the term philosophy meant the entire summation of all scientific knowledge; i.e., generally from the ancient Greeks into the eighteenth century.)
from the GNU version of the Collaborative International Dictionary of English
- n. One versed in various learning.
from The Century Dictionary and Cyclopedia
- n. A person of great learning; one who is versed in various departments of study.
Latin Polyhistōr, from Greek poluistōr, very learned : polu-, poly- + histōr, learned; see weid- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek πολυί̈στωρ (polyhistōr, "greatly learned"). (Wiktionary)