ぐんきょ

群居
gregariousness

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ぐんきょ【群居】

gregariousness; the tendency to herd together; aggregation. [＝ぐんせい³]

～する herd together; live gregariously.

●群居を好む鳥類 birds that flock together; social birds.

群居単位 a social unit.

群居動物 a gregarious animal.

群居本能 【心理】 the herd instinct; (inherent) gregariousness.