bullnose stretcher

bull stretcher

noun Masonry.
  1. Also called bullnose stretcher. a brick having one of the edges along its length rounded for laying as a stretcher in a sill or the like.
  2. a brick laid on edge as a stretcher.
Compare bull header.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018