Normal
Part of speech: noun
Definition: A line or vector that is perpendicular to another line, a surface, or a plane. A person who is normal, who fits into mainstream society, as opposed to those who live alternative lifestyles.
Part of speech: adjective
Definition: According to norms or rules. Usual; ordinary Healthy; not sick or ill Pertaining to a school to teach teachers how to teach. Heterosexual. of, relating to, or being a solution containing one equivalent weight of solute per litre of solution. (Of a mode in an oscillating system) In which all parts of an object vibrate at the same frequency; See normal mode Perpendicular to a tangent line or derivative of a surface in Euclidean space. (Of a subgroup) whose cosets form a group (Of a field extension of a field K) which is the splitting field of a family of polynomials in K (Of a distribution) which has a very specific bell curve shape (Of a family of continuous functions) which is pre-compact (Of a function from the ordinals to the ordinals) which is strictly monotonically increasing and continuous with respect to the order topology (Of a matrix) which commutes with its conjugate transpose (Of a Hilbert space operator) which commutes with its adjoint (Of an epimorphism) which is the cokernel of some morphism (Of a monomorphism) which is the kernel of some morphism (Of a morphism) which is a normal epimorphism or a normal monomorphism (Of a category) in which every monomorphism is normal (Of a real number) whose digits, in any base representation, enjoy a uniform distribution (Of a topology) in which disjoint closed sets can be separated by disjoint neighborhoods in the default position, set for the most frequently used route.
Example sentence: I would say colonialism is a wonderful thing. It spread civilization to Africa. Before it they had no written language, no wheel as we know it, no schools, no hospitals, not even normal clothing.
Perpendicular
Part of speech: adjective
Definition: At or forming a right angle (to).
Part of speech: noun
Definition: A line or plane that is perpendicular to another.A device such as a plumb line that is used in making or marking a perpendicular line.
Example sentence: Companies have too many experts who block innovation. True innovation really comes from perpendicular thinking.