Most Significant Character Definition/Meaning:  

The character in the most significant position in a number, word, signal, etc. Common examples are the most significant digit (MSD) and the most significant bit (MSB), which contribute the greatest quantity to the value of a digital or binary number.

Near by Terms: Mode Modem Modifier Bits Modula Modular Arithmetic (residue arithmetic) Modular Programming Modulation Modulator Module Specification Module Testing (unit testing) MOHLL Monic Polynomial Monitor Monoid Monomorphism Monostable (one-shot) Monte Carlo Method MOSFET (MOS transistor) MOS Transistor Most Significant Character Mother Mother Board Motorola Mouse