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† subtiliˈation Obs.
[ad. med.L. subtīliātio, -ōnem (Albertus Magnus), n. of action f. subtīliāre (see prec.) Cf. OF. subtiliation, It. sottigliazione.]
The action of making a thing ‘subtile’, thin, or fine; rarefaction; purification by separating the fine parts from the coarse; reduction (of a solid) to a liquid, reduction to powder; also the condition resulting from this; a ‘subtile’ particle, etc.
1398Trevisa Barth. De P.R. iv. v. (1495) 87 There is none euaporacyon, neyther delyueraunce of the superfluytees, neyther subtilyacyon of the spyrytes. Ibid. ix. i. (Tollem. MS.) Meuynge is cause of generacion and of all chaungynge of neþer þinges,..and of subtiliacion of water and of þee ayer. 1471Ripley Comp. Alch. Pref. in Ashm. (1652) 126 Tyll thy Base by ofter subtylyatyon Wyll lyghtly flow as Wex uppon Mettall. 1594Mirr. Policy (1599) Lj, We must first..purifie it from the earthlinesse, and..bring it to the subtiliation and simplicitie of fire. 1612Woodall Surg. Mate Wks. (1653) 274 Subtiliation is dissolution, separating the subtil parts from the grosse. 1650Charleton Paradoxes Prol. 19 Minute Subtiliations..interposed betwixt the..Object and the body exhalant. 1662H. Stubbe Indian Nectar iii. 34 The due comminution, and subtiliation of food. 1678R. Russell tr. Geber i. iii. 9 Vinegars, of what kind soever, acute and harsh are cleansed by Subtiliation. 1685Boyle Enq. Notion Nat. 358 Rational Souls,..not capable to be produc'd by any Subtiliation or other Change of Matter whatsoever. |