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a combining form meaning “old age,” used in the formation of compound words: gerontology.
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Also especially before a vowel, geront-.
Origin of geronto-
<Greek, combining form representing geront-, stem of gérōn old man
Words nearby geronto-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for geronto-
before a vowel geront-
indicating old agegerontology; gerontophilia
Word Origin for geronto-
from Greek gerōn, geront- old man
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