% (2) Heat %

     #382.  Heat. —­ N. heat, caloric; temperature, warmth, fervor,
calidity[obs3]; incalescence[obs3], incandescence; glow, flush; fever, hectic.
     phlogiston; fire, spark, scintillation, flash, flame, blaze; bonfire;
firework, pyrotechnics, pyrotechny[obs3]; wildfire; sheet of fire, lambent flame; devouring element; adiathermancy[obs3]; recalescence[Phys].
     summer, dog days; canicular days[obs3]; baking &c. 384 heat, white
heat, tropical heat, Afric heat[obs3], Bengal heat[obs3], summer heat, blood heat; sirocco, simoom; broiling sun; insolation; warming &c. 384.
     sun &c. (luminary) 423.
     [Science of heat] pyrology[obs3]; thermology[obs3], thermotics[obs3],
thermodynamics; thermometer &c. 389.
     [thermal units] calorie, gram-calorie, small calorie; kilocalorie,
kilogram calorie, large calorie; British Thermal Unit, B.T.U.; therm, quad.
     [units of temperature] degrees Kelvin, kelvins, degrees centigrade,
degrees Celsius; degrees Fahrenheit. 
     V. be hot &c. adj.; glow, flush, sweat, swelter, bask, smoke, reek,
stew, simmer, seethe, boil, burn, blister, broil, blaze, flame; smolder; parch, fume, pant.
     heat &c. (make hot) 384; recalesce[obs3]; thaw, give. 
     Adj. hot, warm, mild, genial, tepid, lukewarm, unfrozen; thermal,
thermic; calorific; fervent, fervid; ardent; aglow.
     sunny, torrid, tropical, estival|!, canicular[obs3], steamy; close,
sultry, stifling, stuffy, suffocating, oppressive; reeking &c. v.; baking &c. 384.
     red hot, white hot, smoking hot, burning &c. v. hot, piping hot; like
a furnace, like an oven; burning, hot as fire, hot as pepper; hot enough to roast an ox, hot enough to boil an egg.
     fiery; incandescent, incalescent[obs3]; candent[obs3], ebullient,
glowing, smoking; live; on fire; dazzling &c. v.; in flames, blazing, in a blaze; alight, afire, ablaze; unquenched, unextinguished[obs3]; smoldering; in a heat, in a glow, in a fever, in a perspiration, in a sweat; sudorific[obs3]; sweltering, sweltered; blood hot, blood warm; warm as a toast, warm as wool.
     volcanic, plutonic, igneous; isothermal|!, isothermic|!, isotheral|!. 
     Phr. not a breath of air; “whirlwinds of tempestuous fire” [Paradise
Lost].

     #383.  Cold. —­ N. cold, coldness &c. adj.; frigidity, inclemency,
fresco.
     winter; depth of winter, hard winter; Siberia, Nova Zembla; wind-chill
factor.
     [forms of frozen water] ice; snow, snowflake, snow crystal, snow
drift; sleet; hail, hailstone; rime, frost; hoar frost, white frost, hard frost, sharp frost; barf; glaze [U.  S.], lolly [obs3][N.  Am.]; icicle, thick-ribbed ice; fall of snow, heavy fall; iceberg, icefloe; floe berg; glacier; neve, serac[obs3]; pruina[obs3].
     [cold substances] freezing mixture, dry ice, liquid nitrogen, liquid
helium.
     [Sensation of cold] chilliness &c. adj.; chill; shivering &c. v.;