† appaˈrationObs.rare. [ad. L. apparātiōn-em, n. of action f.apparāre to make ready: see apparatus.] Preparation, array. 1533Bellendene Livy v. 414 Maid thare beddis..with maist apparacioun and magnificence that micht be devisit.1657Tomlinson Renou's Disp. 561 The apparation of this Medicament.