a. [ See Consent, v. i., and cf. Sensual. ] 1. (Law) Existing, or made, by the mutual consent of two or more parties. [ 1913 Webster ]
2. (Physiol.) Excited or caused by sensation, sympathy, or reflex action, and not by conscious volition; as, consensual motions. [ 1913 Webster ]
Consensual contract (Law), a contract formed merely by consent, as a marriage contract. [ 1913 Webster ]