ageing has definitions from the field of biology
1
[ noun ] (biology) the organic process of growing older and showing the effects of increasing age

Synonyms

senescence aging

Related terms

organic_process catabiosis

2
[ adjective ] growing old

Synonyms

senescent aging

Related terms

old

3
[ noun ] (biology) acquiring desirable qualities by being left undisturbed for some time

Related terms

organic_process mellowing

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