Lavender relationship (formerly lavender marriage): a duaric mixed relationship (between a man and a woman), undertaken as a relationship of convenience to

conceal the socially stigmatized orientation of one or both partners; a duaric couple in which one or both members have marginalized orientation(s)/are attractionally or affectionally variant/non-conforming.

The relation is often amorous (romantic/queerplatonic) or gamous (marital). -Ap