[boo l-nohz]
  1. Also bull's nose. Architecture.
    1. a rounded or obtuse exterior angle, as the corner made by two walls.
    2. a structural member, as a brick, used in forming such an angle.
  2. Also called bullnose step. a step having semicircular or quadrantal ends.

Origin of bullnose

First recorded in 1835–45; bull1 + nose
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018