PROLUSION
Source: 566, 567
prolusion. Prolusion, n. a prelude, a diverting performance
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Pro‐lu″sion (?), n. [[L. prolusio, fr. proludere to prelude; pro before + ludere to play: cf. F. prolusion, It. prolusione.]] A trial before the principal performance; a prelude; hence, an introductory essay or exercise. “Domestic prolusions.” Thackeray. Her presence was in some measure a restraint on the worthy divine, whose prolusion lasted. Sir W. Scott.