aging

加齢、熟成

時間とともに年を取ったり、成熟したりすること。

やさしい英語で： The process of getting older or developing over time.

• Aging is a natural process.
• Regular exercise can support healthy aging.
• The aging of cheese changes its taste.

類義語： growing older, maturation

よく使う表現： natural aging, healthy aging, population aging

経年劣化

材料や物の質や強さが、時間とともに少しずつ失われること。

やさしい英語で： The gradual loss of quality or strength in a material or object over time.

• Aging made the rubber crack.
• The cables showed signs of aging.
• Heat can speed up the aging of plastic parts.

類義語： wear, deterioration

よく使う表現： material aging, aging of rubber, aging of equipment

老化

時間とともに細胞や体の各部が少しずつ傷んでいくこと。

やさしい英語で： The gradual damage to cells and body parts as time passes.

• The researchers studied aging in human cells.
• Cellular aging can affect how tissues repair themselves.
• The study linked biological aging to damage in proteins.

類義語： senescence

よく使う表現： cellular aging, biological aging, aging research

エイジング加工

物を実際より古く見せたり、人工的に古くしたりすること。

やさしい英語で： Making something look or become older than it really is.

• Artificial aging gave the table an antique look.
• The film crew used aging to make new props look ancient.
• Aging of the painted surface took several hours.

類義語： distressing

よく使う表現： artificial aging, aging technique, aging of wood

年老いた、老いつつある

年を取りつつある。特に健康や能力に影響が出ている。

やさしい英語で： Getting old, especially when this affects health or ability.

• She cares for her aging mother.
• The aging actor still enjoys performing.
• An aging population needs more health services.

類義語： growing old, elderly

よく使う表現： aging parents, aging population, aging actor