Of or pertaining to that side of the body in man on which the muscular action of the limbs is usually weaker than on the other side; opposed to right, when used in reference to a part of the body; as, the left ear. Also said of the corresponding side of the lower animals. Left bank of a river, that which is on the left hand of a person whose face is turned downstream. Left bower. See bower. Left center, the members whose sympathies are, in the main, with the members of the left, but who do not favor extreme courses, and on occasions vote with the government. They sit between the Center and the extreme left. Over the left shoulder, or Over the left, an old but still current colloquialism, or slang expression, used as an aside to indicate insincerity, negation, or disbelief; as, he said it, and it is true, over the left.