[ thee-er-i-tish-uh n, theer-i- ]
/ ˌθi ər ɪˈtɪʃ ən, ˌθɪər ɪ- /


a person who deals with or is expert in the theoretical side of a subject: a military theoretician.

Origin of theoretician

First recorded in 1885–90; theoretic(s) + -ian Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for theoretician

  • As a theoretician, Rameau exerted tremendous influence upon music.

  • Of what possible use can a mathematician, a theoretician and a theoretical astronomer be in such a situation as this?

    Masters of Space|Edward Elmer Smith

British Dictionary definitions for theoretician

/ (ˌθɪərɪˈtɪʃən) /


a student or user of the theory rather than the practical aspects of a subject
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012