▪ I. heating, vbl. n.
(ˈhiːtɪŋ)
[f. heat v. + -ing1.]
a. The action of the verb heat; imparting of heat, warming; becoming hot; techn. ‘in the iron and steel industry, Getting the steel hot for rolling’ (Labour Comm. Gloss. 1892).
| 1398 Trevisa Barth. De P.R. vii. xlix. (1495) 263 Bathynges and heetynges whyche dyssolue and departe and melte the matere. 1545 R. Ascham Toxoph. (Arb.) 115 Well seasoned..wyth hetynges and tillerynges. 1592 Shakes. Ven. & Ad. 742 Sickness, whose attaint Disorder breeds by heating of the blood. 1665 R. Hooke Microgr. 37 A gradual heating and cooling does anneal or reduce the parts of Glass to a texture that is more loose. 1858 Greener Gunnery 175 The loss of strength by heating or softening. 1884 S. P. Thompson Dynamo-Electr. Mach. 105 There is another cause of heating in field-magnet cores. |
b. attrib. and Comb., as heating apparatus, heating appliance, heating arrangement(s), heating power, heating stove; heating element (see element n. 4 c); heating furnace (see quot.); heating pan, a pan in which substances are warmed in various manufacturing processes.
| 1611 Cotgr., Chauffage,..heating stuffe, or stuffe to heat with. 1811 A. T. Thomson Lond. Disp. (1818) p. xxxviii, Chemical effects..independent of its heating power. 1860 Tyndall Glac. ii. ii. 240 Beyond the red..we have rays possessing a high heating power. 1861 W. Fairbairn Mills I. 270 Feed-water Heating Apparatus. 1873 Leisure Hour 18 Jan. 48/1 Cisterns in the upper parts of a house should be emptied, if the heating arrangement has been neglected. 1881 Raymond Mining Gloss., Heating-furnace, the furnace in which blooms or piles are heated before hammering or rolling. 1902 Encycl. Brit. XXVI. 510/2 It [sc. a temperature of 20°C] is readily attainable at any time in a modern laboratory with adequate heating arrangements. 1923 R. G. Collingwood Roman Brit. 54 The discovery of skeletons huddled inside the heating-arrangements beneath the floors. |
▪ II. ˈheating, ppl. a.
[f. heat v. + -ing1.]
That heats or makes hot, in various senses.
| 1591 Percivall Sp. Dict., Caluroso, hot, heating. 1601 Holland Pliny II. Table, Heating medicines. 1732 Arbuthnot Rules of Diet 258 Truffles..are heating. 1812 L. Hunt in Examiner 7 Dec. 771/1 To have..his warmth in an argument traced to a heating diet. |
b. heating surface, the total surface of a steam boiler, exposed on one side to the fire, on the other to water; the fire-surface: see quots. heating-tube, a water tube in a boiler surrounded by flame.
| 1854 Ronalds & Richardson Chem. Technol. (ed. 2) I. 259 The grate is large in proportion to the consumption of fuel, as well as the heating surface. 1861 W. Fairbairn Mills I. 261 The efficient heating surface is obtained by deducting from the total heating surface one-half the area of vertical portions, and one-half the area of horizontal cylindrical flues. 1894 Times 23 July 6/4 Boilers, which have an aggregate heating surface of 7,890 square feet, with a grate area of 189. |
Hence ˈheatingly adv., in a heating manner.
| 1668 Wilkins Real Char. 303 Heatingly. Illuminatingly. |