Roget's Thesaurus: Entry 171 (Physical Energy)

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#171. Physical Energy.-- N. energy, physical energy, force, power &c. 157; keenness &c. adj.; intensity, vigor, strength, elasticity; go; high pressure; fire; rush.

acrimony, acritude[obs]; causiticity[obs], virulence; poignancy; harshness &c. adj.; severity, edge, point; pungency &c. 392.

cantharides; seasoning &c. (condiment) 393.

activity, agitation, effervescence; ferment, fermentation; ebullition, splutter, perturbation, stir, bustle; voluntary energy &c. 682; quicksilver.

resolution &c. (mental energy) 604; exertion &c. (effort) 686; excitation &c. (mental) 824.

V. give -energy &c. n.; energize, stimulate, kindle, excite, exert; sharpen, intensify; inflame &c. (render violent) 173; wind up &c. (strengthen) 159.

strike home, into home, hard home; make an impression.

Adj. strong, energetic, forcible, active; intense, deep-dyed, severe, keen, vivid, sharp, acute, incisive, trenchant, brisk.

rousing, irritation; poignant; virulent, caustic, corrosive, mordant, harsh, stringent; double-edged, double-shotted[obs], double-distilled; drastic, escharotic|; racy &c. (pungent) 392.

potent &c. (powerful) 157; radioactive.

Adv. strongly &c. adj.; fortiter in re[Lat]; with telling effect.

Phr. the steam is up; vires acquirit eundo[Lat]; "the race by vigor not by vaunts is won" [Pope].