Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

vital flame, soul, spirit. respiration, wind; breath of life, breath of one's nostrils; oxygen, air. [devices to sustain respiration] respirator, artificial respirator, heart and lung machine, iron lung; medical devices &c 662. lifeblood; Archeus†; existence &c 1. vivification; vital force; vitalization; revivification &c 163; Prometheus; life to come &c (destiny) 152. [Science of life] physiology, biology; animal ecology. nourishment, staff of life &c (food) 298. genetics, heredity, inheritance, evolution, natural selection, reproduction (production) 161. microbe, aerobe, anaerobe, facultative anaerobe, obligate aerobe, obligate anaerobe, halophile [Micro.], methanogen [Micro.], archaebacteria [Micro.], microaerophile [Micro.]. animal &c 366; vegetable &c 367. artificial life, robot, robotics, artificial intelligence. [vital signs] breathing, breathing rate, heartbeat, pulse, temperature. preservation of life, healing (medicine) 662. V. be alive &c adj.; live, breathe, respire; subsist &c (exist) 1; walk the earth, strut and fret one's hour upon the stage [Macbeth]; be spared. see the light, be born, come into the world, fetch breath, draw breath, fetch the breath of life, draw the breath of life; quicken; revive; come to life. give birth to &c (produce) 161; bring to life, put into life, vitalize; vivify, vivificate†; reanimate &c (restore) 660; keep alive, keep body and soul together, keep the wolf from the door; support life. hive nine lives like a cat. Adj. living, alive; in life, in the flesh, in the land of the living; on this side of the grave, above ground, breathing, quick, animated; animative†; lively &c (active) 682; all alive and kicking; tenacious of life; full of life, yeasty. vital, vitalic†; vivifying, vivified, &c v.; viable, zoetic†; Promethean. Adv. vivendi causa [Lat.]. Phr. atqui vivere militare est [Lat.] [Seneca]; non est vivere sed valere vita [Lat.] [Marial].