title: N-
text: # N-
  
  ## Chemistry
  
  * n-, a lowercase prefix in chemistry denoting the straight-chain form of an open-chain compound in contrast to its branched isomer
  * N-, an uppercase prefix in chemistry denoting that the substituent is bonded to the nitrogen, as in amines
  
  ## Mathematics, science and technology
  
  The italicized letter n is used in mathematics to denote an arbitrary number (usually a non-negative integer).
  
  * n-ary associativity
  * n-ary code
  * n-ary group
  * n-back
  * n-body problem
  * n-category
  * n-category number
  * n-connected space
  * n-curve
  * n-dimensional space
  * n-dimensional sequential move puzzle
  * n-electron valence state perturbation theory (NEVPT)
  * n-entity
  * n-flake
  * n-gram
  * n-group
  * n-monoid
  * n-player game
  * n-skeleton
  * n-slit interferometer
  * n-slit interferometric equation
  * n-sphere
  * n-vector
  * n-vector model
  