新陳代謝

• 読み: しんちんたいしゃ
• ローマ字: shinchintaisha
• 漢字の分解: 新 (shin) — new; 陳 (chin) — old, stale; 代 (tai) — replace, substitute; 謝 (sha) — decline, shed
• 発音: /ɕiɴ.tɕiɴ.tai.ɕa/

意味

Metabolism; renewal; replacement. The process by which cells and tissues are renewed in the body.

A noun and suru-verb with two main uses: (1) the biological process of metabolism — breaking down nutrients and building new cells, and (2) figurative renewal or turnover of people, ideas, or systems. As a four-character compound (四字熟語), it carries a formal, educated tone. Common collocations include 新陳代謝が良い (good metabolism) and 新陳代謝を促す (promote metabolism/renewal).

例文

1. 運動すると新陳代謝が活発になる。
2. 年齢を重ねると新陳代謝が落ちてくる。
3. 組織の新陳代謝を促すために若手を積極的に登用した。

使い方ガイド

場面: health, biology, business

トーン: neutral

起源と歴史

From Sino-Japanese: 新 (shin, new) + 陳 (chin, old/stale) + 代 (tai, replace) + 謝 (sha, decline/shed). Literally 'the new replaces the old' — the cycle of renewal where old matter is shed and replaced.

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal