Definition of "jointer" []

• A machine or tool used in making joints. (noun)
• A tool used to cut grooves indicating the joints in cement. (noun)
• A triangular attachment to a plow used in covering trash or refuse. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The wearing coat is next divided into sections corresponding with the sections into which the base is divided, by cutting through it with a trowel guided by a straight edge and then rounding the edges of the cut with a special tool called a jointer and shown by Fig. 117."
• "After the mortar has set, but before it has begun to harden, use a bent round bar called a "jointer" to "tool" each joint: run the bar along each horizontal joint, pressing against the mortar firmly."
• "Using the slender trowel, I believe called a "jointer" or "joint trowel" (keep in mind my entire knowledge of masonry has been gleaned from catching the odd episode of DIY Network's "Rock Solid") I shaved off excess mud from the joint, did my best to smooth the mortar, and used the brush to finish."