収縮

• Reading: しゅうしゅく
• Romaji: shuushuku
• Kanji breakdown: 収 (shuu/osa) — collect, take in; 縮 (shuku/chiji) — shrink, contract
• Pronunciation: /ɕɯː.ɕɯ.kɯ/

Meaning

Contraction; shrinkage; constriction. The process of becoming smaller or tighter.

A noun and suru verb used in science, medicine, and economics. In medicine it describes muscle or blood vessel contraction; in economics it refers to market or monetary deflation. The opposite is 膨張 (bouchou, expansion). Can function as an intransitive verb with する.

Examples

1. 寒さで血管が収縮すると血圧が上がる。 When blood vessels constrict from the cold, blood pressure rises.
2. 経済の収縮が長引いている。 The economic contraction is dragging on.
3. 筋肉が収縮してけいれんが起きた。 The muscle contracted and caused a cramp.

Usage Guide

Context: science, medicine, economics

Tone: neutral

Origin & History

Compound of 収 (shuu, collect/take in) + 縮 (shuku, shrink/contract). Both characters convey the idea of drawing inward, creating a word that describes physical or metaphorical contraction.

Cultural Context

Era: Classical

Generation: All ages

Social background: Universal