老ろう化か現げん象しょう

noun

aging process; phenomena of aging

Refers to the biological or physiological process of growing old, often used in medical or scientific contexts.

• 老ろう化か現げん象しょうは誰だれにでも起おこります。

  The aging process happens to everyone.

• 最さい近きん、肌はだの老ろう化か現げん象しょうが気きになる。

  Lately, I'm concerned about the signs of aging on my skin.