The term is 'capturing en passant.' (It's a French term.) It arises when a pawn (obviously one that has not previously moved) moves two spaces ahead, and in doing so ends up immediately beside an opponent's pawn. The opponent's pawn has the option of capturing en passant by removing the first pawn and placing his pawn in the square that the first pawn moved through. The positioning after each player has moved would be the same as if the first pawn had only moved one square forward, and then was captured in normal fashion by the opponent's pawn.
En passant is a special pawn capture in chess. The literal meaning of en passant is "passing."
The 'En Passant' move was added sometime in the 15th Century .
it is called En Passant
No , not by that term , but there is "En Passant" (In passing) ~ see related link below .
Some are en passant, castling, and queening.
It is difficult to explain the 'en passant' rule in words. The following web link has got a graphical illustration of 'en passant' rule : http://www.chesskids.com/kids/enpas.htm
As many as possible.
Castling, En Passant, Check (Mate), Taking
Castling, en passant, gambit, queening, check and checkmate (or just mate) are some.
The pieces involved are the pawns of each player.