the force that animates and perpetuates living beings and organisms.
Also called vital principle.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for vital force
(esp in early biological theory) a hypothetical force, independent of physical and chemical forces, regarded as being the causative factor of the evolution and development of living organisms
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012