/bool"nohz'/ , n.
1. Also, bull's nose . Archit.
a. a rounded or obtuse exterior angle, as the corner made by two walls.
b. a structural member, as a brick, used in forming such an angle.
2. Also called bullnose step . a step having semicircular or quadrantal ends.
[ 1835-45; BULL 1 + NOSE ]