| 释义 |
ustulation|ʌstjʊˈleɪʃən|
[ad. med.L. ūstulātiōn-, ūstulātio, noun of action f. L. ūstulāre to burn.]
1. The action of burning or fact of being burnt; spec. in later use, torrification, roasting.
1658tr. Porta's Nat. Magic x. xii. 267 To extract Oyl by Descent..is common and vulgar to all; for it is done by Ustulation. 1667Sprat Hist. R. Soc. 296 The ustulation or affriction between the Nave and the Axel-tree. 1753Chambers' Cycl. Suppl., Ustulation,..the roasting or torrefying of humid or moist substances over a gentle fire, so as to render them fit for powdering. 1780J. T. Dillon Trav. Spain (1781) 262 Melting and ustulation of the mercurial ores. 1811Self Instructor 534 Blacking lies in the iron, and particularly in its ustulation. 1839Ure Dict. Arts 820 The combustion must be so conducted as..to prolong the ustulation, and let the whole mass be equably penetrated with heat.
†2. fig. = ustion 3. Obs. rare.
1660Jer. Taylor Ductor iii. iv. rule 20 §13 A state of cœlibate exposes us to a perpetual ustulation. Ibid. §16 It is not certain that they took the better part when they chose ustulation before marriage. |
