One who makes a donation.
A group or molecule that donates either a radical, electrons or a moiety in a chemical reaction. Compare acceptor.
A person of considerable importance who is a major decision maker or capable achiever; an especially significant organization or an especially functional object.
A player with a favorable batting average who is especially good at hitting the ball deep into the outfield or farther.
In any sport, a strong, physical player who is particularly effective.