- Natural
  selection
-  (np) 1. The differential reproduction and,
  thereby, transmission of alleles between generations, of individuals in
  a population, due to heritable variation in a trait or traits which
  they possess.  This is one mechanism by which evolution(1) can occur.  [den.]
  2. Survival of the fittest. [conn., due to Herbert
  Spencer c. 1850] This oversimplification is perhaps the most widely
  held incorrect "definition" of evolution.  Several people have
  spent much time and effort declaring that natural selection(2) is
  a tautology, although their intended target was apparently natural selection(1).
  The list of those making this strawman argument
  analysis includes such luminaries as Arthur Koestler, Tom Bethell, and Phillip E.  Johnson.
  
- NCSE
-  acronym, "National
  Center for Science Education", publisher of the Creation/Evolution
  journal and NCSE Reports newsletter.  (NCSE, P.O. Box 9477, Berkeley,
  CA 94709, (510) 843-3393.  $20/year for membership and both
  publications.)
  
- ? Nebraska Man
-  (np)
  1. An instance of misclassification of fossil teeth as hominid when
  they were actually those of an extinct peccary. Osborn did the original
  misclassification and also organized the field work which uncovered
  evidence that the fossils were misclassified.  Total elapsed time
  between misclassification and correct classification was about five
  years.  2.  Evolutionary hoax which proves that scientific evidence
  cannot be trusted [conn. SciCre,
  TAE]
  
- ? Nebraska man
-  (n)
  1. A peccary's tooth which was misidentified as human and for a time
  led researchers to believe primitive hominids had been present in the
  Americas.  Despite initial enthusiasm about the find (particularly
  among American paleontologists -- "As we always thought, mankind
  originated in America", oh say can you see et cetera), further
  examination correctly identified the tooth, and the Nebraska man now
  serves as a fine example of science's self-correcting properties.  2.
  An error which shows how everything evilutionist scientists claim
  to known about man's origins is wrong [conn, SciCre].
  
- Neutralist
  hypothesis
-  (np) 1. The hypothesis that most variation
  in genotypes is phenotypically
  neutral in affect (that no or insignificant selective pressure operates
  upon heritable variation), and that the major mechanisms of heritable
  change in populations are genetic drift and gene flow.  Propounded most
  forcefully by Kimura. [den., science]
  
- Non sequitur
-  (np)
  1. A response which does not address the main issue in contention.  An
  artful use of non sequitur allows one to divert attention from a
  disastrous train of discussion at the modest expense of one's
  intellectual integrity.  From the Latin, "It does not follow."  2.
  Improper inference based on premises necessary, but not sufficient, for
  justification of the conclusion claimed.  The conclusion is asserted to
  follow without the specification of the complete line of logic needed
  to establish the implication. See fallacy.