The term sickle cell disease (SCD) describes a group of inherited red blood cell disorders. People with SCD have abnormal hemoglobin, called hemoglobin S or sickle hemoglobin, in their red blood cells.
2 v, [kÉntraktâ²] , to make such an agreement or promise. contractual, adj. A written, dated and signed agreement between two or more parties, which sets out any arrangements on delegation and distribution of tasks and obligations, and, if appropriate, on financial matters. A clinical trial protocol may serve as the basis for a contract. contract.
Legal Definition of agreement. 1  1a : the act or fact of agreeing by mutual agreement b : unity of opinion, understanding, or intent; especially : the mutual assent of contracting parties to the same terms if they reach agreement Editor's note: Under common law, agreement is a necessary element of a valid contract.