companionate marriage
noun
a form of marriage in which the partners agree not to have children and can be divorced by mutual consent, leaving neither spouse legally responsible for the financial welfare of the other.
Compare
trial marriage.
Origin of companionate marriage
First recorded in 1925–30
Words nearby companionate marriage
companion set,
companion star,
companion vein,
companionable,
companionate,
companionate marriage,
companionship,
companionway,
company,
company doctor,
company grade