theo‧rist AC /ˈθɪərəst, ˈθɪərɪst $ ˈθiːə-/ (also theo‧re‧ti‧cian /ˌθɪərəˈtɪʃən $ ˌθiːə-/) noun [countable]
[Word Family: noun: theorist, theory, theorem, theoretician; verb: theorize; adverb: theoretically; adjective: theoretical]
someone who develops ideas within a particular subject that explain why particular things happen or are true:
a leading economic theorist

[TahlilGaran] Dictionary of Contemporary English ▲