共棲

• 読み: きょうせい
• ローマ字: kyousei
• 漢字の分解: 共 (kyou) — together, mutual | 棲 (sei) — to inhabit, nest
• 発音: /kʲoː.seː/

意味

Symbiosis; living together. The biological relationship in which two or more species live in close physical association to mutual or partial benefit.

A biological noun specifically used for interspecies relationships. Includes mutualism (互利共棲), commensalism (片利共棲), and related interactions. More specialised than 共存 (coexistence), which applies broadly. 共棲 emphasises direct physical proximity and interdependence. Used in ecology, evolutionary biology, and environmental science. The second character 棲 specifically denotes animals inhabiting a place.

例文

1. サンゴとゾウリムシの共棲関係は、珊瑚礁の形成に欠かせない。
2. この植物と菌類の共棲によって、痩せた土地でも栄養が確保されている。
3. 共棲の仕組みを理解することは、生態系保全の第一歩だ。

使い方ガイド

場面: biology, ecology, evolutionary science, environmental studies

トーン: academic

起源と歴史

Compound of 共 (kyou, 'together, mutually') and 棲 (sei, 'to live in, inhabit, nest'). The second character specifically denotes animals inhabiting a place, distinct from the more generic 住 used for human residences.

文化的背景

時代: Modern

世代: Adults

社会的背景: Educated