What does "zolaism" mean?

Zolaism: The literary theories and practices of the French novelist Emile Zola (1840-1902); naturalism, esp. in a derogatory sense. -- Zo"la*ist, n. -- Zo`la*is"tic (#), a. -- Zo"la*ize (#), v. ZOLLNER'S LINES Zöll"ner's lines`. [So called after Friedrich Zöllner, a German physicist.] Parallel lines that are made to appear convergent or divergent by means of oblique intersections.

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