老ろう年ねん学がく

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Meanings

1

noun

Academic field studying aging and the elderly.

old man, old age, grow old

年year, counter for years

学study, learning, science

老ろう人じん学がく
Similar meaning, but 老人学 is less common and may sound more clinical or dated.

Compound of 老年 (old age) and 学 (study, -ology).