Definition of "theoriser" []

• Someone who theorizes (especially in science or art) (noun)

WordNet. Princeton University. 2010.

• "And think about whether they want to be associated with this sort of bullying, aggressive, rude behaviour - irrespective of the sincerity (or otherwise) of the beliefs held, and the social skills and mental functioning abilities (or otherwise) of the theoriser."
• "As a lecturer, a theoriser, and a populariser of his art, Haydon has just claims to grateful remembrance."
• "We shall see later that he possesses qualities altogether apart from those of the theoriser or the man of action."