The term "Queen's Bishop" refers to a specific piece in the game of chess. It is the bishop that starts on the c1 square for the White player and the c8 square for the Black player. This piece moves diagonally across the board, allowing it to control long-range squares and support other pieces. In chess openings, the Queen's Bishop often plays a crucial role in developing strategies. It can be activated early in the game to control the center and create threats against the opponent's position. Proper use of the Queen's Bishop can lead to strong tactical opportunities and improved board control.