Meaning of かよいづま in Japanese

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Definition of かよいづま

かよいづま(kayoizuma) 【通い妻】

(n) wife who lives elsewhere but regularly visits her husband
通い妻とは名前の通り、妻が夫の元に通う結婚形態の事である。
A 'commuting wife' is just what the name says, it's a form of marriage where the wife travels to her husband's side.