Clōs'er, n.
n. 1. A finisher; one who concludes, finishes, or terminates. 2. (Arch.) The last stone in an horizontal course, but of a less size than the others, or a piece of brick finishing a course.
n. 1. A finisher; one who concludes, finishes, or terminates. 2. (Arch.) The last stone in an horizontal course, but of a less size than the others, or a piece of brick finishing a course.