Techne and Definition

In Novum Organum, Bacon establishes an Inductive Logic vs. Deductive Logic contrast with Aristotle.  A less recognized Modern divergence from Ancient Philosophy is presented by Spinoza--his concept of Definition.  Implicitly targeting Aristotle's concept as constituted by some general term and some differentia, he proposes what has become characterized as an Operational concept, constituted by a formulation of what he calls the Proximate Cause of the definiendum, e. g. Circle = the figure described by a line with one end fixed and the other end free, as opposed to the traditional = set of points equidistant from a point.  In other words, insofar as a Definition expresses Knowledge, Spinoza is contrasting Techne to Theory in his concept.  Perhaps if he had emphasized in the Ethics that such a Definition is an Adequate Idea, that the work replaces Theory with Techne might be better recognized.