Definition of: encyclopedist

(en·sī′klə·pē′dist) noun
1. A writer for or compiler of an encyclopedia.
2. One whose studies embrace all sciences. Also en·cy′clo·pae′dist.
—French Encyclopedist One of the writers of the Encyclopédie ou Dictionnaire raisonné des sciences, des arts, et des métiers (1751–65): among these were the two editors, Diderot and D'Alembert, and a number of contributors, of whom Voltaire and Rousseau are the best known.