hopeful monster WORD ORIGIN noun Biology. a hypothetical individual organism that, by means of a fortuitous macromutation permitting an adaptive shift to a new mode of life, becomes the founder of a new type of organism and a vehicle of macroevolution. Liberaldictionary.com
Origin of hopeful monster First recorded in 1933; phrase introduced by German geneticist Richard B. Goldschmidt (1879–1958) Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019