Definition of mole

• n. - A spot; a stain; a mark which discolors or disfigures.
• n. - A spot, mark, or small permanent protuberance on the human body; esp., a spot which is dark-colored, from which commonly issue one or more hairs.
• n. - A mass of fleshy or other more or less solid matter generated in the uterus.
• n. - A mound or massive work formed of masonry or large stones, etc., laid in the sea, often extended either in a right line or an arc of a circle before a port which it serves to defend from the violence of the waves, thus protecting ships in a harbor; also, sometimes, the harbor itself.
• n. - Any insectivore of the family Talpidae. They have minute eyes and ears, soft fur, and very large and strong fore feet.
• n. - A plow of peculiar construction, for forming underground drains.
• v. t. - To form holes in, as a mole; to burrow; to excavate; as, to mole the earth.
• v. t. - To clear of molehills.