noun.
An axlike tool with a curved blade at right angles to the handle, used for shaping wood.
The Century Dictionary and Cyclopedia
To chip or shape with an adz: as, to adz logs or timber.
noun.
A cutting-tool somewhat like an ax, but having the blade placed at right angles to the handle and formed to a curve nearly corresponding to its sweep through the air when in use.
the GNU version of the Collaborative International Dictionary of English
noun.
A carpenter's or cooper's tool, formed with a thin arching blade set at right angles to the handle. It is used for chipping or slicing away the surface of wood.