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Definition of gerontologist noun from the Oxford Advanced Learner's Dictionary

gerontologist

noun
 
/ˌdʒerɒnˈtɒlədʒɪst/
 
/ˌdʒerənˈtɑːlədʒɪst/
(especially North American English)
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  1. a person who studies the process of people growing old
See gerontologist in the Oxford Advanced American Dictionary
trait
noun
 
 
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