noun Biology.

the study of the diminution or decline of life, as in an individual animal or a species approaching extinction.

Origin of geratology

1880–85; gerat- (erroneously taken as the stem of Greek gêras old age) + -o- + -logy
Related formsger·a·to·log·ic [jer-uh-tl-oj-ik] /ˌdʒɛr ə tlˈɒdʒ ɪk/, ger·a·tol·o·gous [jer-uh-tol-uh-guh s] /ˌdʒɛr əˈtɒl ə gəs/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for geratology

Historical Examples of geratology

British Dictionary definitions for geratology



the branch of medicine concerned with the elderly and the phenomena associated with ageing; geriatrics and gerontology
Derived Formsgeratological (ˌdʒɛrətəˈlɒdʒɪkəl), adjectivegeratologist, noun

Word Origin for geratology

C19: from gerato-, from Greek gēras old age + -logy
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

Word Origin and History for geratology

"study of decadence," 1884, from Greek geras (genitive geratos) "old age" (see geriatric) + -logy.

Online Etymology Dictionary, © 2010 Douglas Harper