Normal (geometry) Normal (geometry) In geometry, a normal is an object such as a line or vector that is perpendicular to a given object. For example, in two dimensions, the normal line to a curve at a given point is the line perpendicular to the tangent line to the curve at the point. In three dimensions, a surface normal, or simply normal, to a surface at a point "P" is a vector that is perpendicular to the tangent plane to that surface at "P". The word "normal" is also used as an adjective: a line normal to a plane, the normal component
A House Is Not a Home (film) Her next apartment is in a building owned by Frank Costigan, a gangster. Frank approves of Polly's attractive girlfriends and pays her to have the ladies go out socially with his friends. One thing leads to another and soon Polly is the madam of a bordello. She has genuine feelings for a musician, Casey Booth, but does not reveal her true occupation to him. Costigan becomes the top enforcer for mob boss Lucky Luciano and backs Polly's business, which ends up on Park Avenue offering high-class call girls. Casey proposes marriage, so Polly finally confesses what she does for a