Most Popular. 1  GCHQ challenges you to crack codes for charity with its first ever puzzle book. 2  A Christmas card with a cryptographic twist for charity. 3  Foreign Secretary appoints new Director GCHQ.  Applications open for GCHQâs Cyber Summer 1  Schools. GCHQ Cheltenham.
matter of the heart definition, matter of the heart meaning | English dictionary. matter. 2 substance that occupies space and has mass, as distinguished from substance that is mental, spiritual, etc. n the substance or main theme of a book, discussion, debate, etc.
Medical Definition of Heart murmur. Heart murmur: An unusual, 'whooshing' heart sound that may be innocent or may reflect disease or malformation. A heart murmur is created by blood flow through a heart valve, by blood flow through a narrowed chamber, or by an unusual connection between the chambers, as seen with congenital heart disease. Sometimes a heart murmur does not represent any disease or condition and is, therefore, referred to as a functional heart murmur.