Messenger - Definition and Overview

Messenger is the following:

• MESSENGER is a NASA Mercury probe launched in 2004.
• Messenger is the third album by Edwin McCain, released on June 15, 1999.
• In biochemistry a messenger is a chemical matter, used for cellular signalling.
• Messenger RNA is RNA that carries information from DNA to the ribosome sites of protein synthesis in the cell.
• Instant Messenger like MSN_Messenger, ICQ or Miranda IM.
• Messenger was an English thoroughbred horse foaled in 1780, who was the founding sire of today's standardbreds, the principal breed used in harness racing.