nacelles - A structure that holds an engine for space craft. Examples are warp and impulse nacelles.
Nagus - The political and economic leader of the Ferengi.
Nanites - Microscopic robots that perform various tasks.
nano - A prefix meaning a billionth
nanobot - A microscopic robot designed to perform specific functions.
nausicaan - A humanoid race that was easily angered.
navigator - A person or machine that controls the direction of a vessel.
ncc - A prefix for ship designations used when a ship has been commisioned.
NCC-1701 - The designation of the U.S.S. Enterprise commanded by Captain Kirk.
Nem - Star Trek X: Nemesis
nerf - To make something weaker then it was.
nerfed - Something in a video game that has been weakened by the developers in order to adjust the game's balance.
neutral zone - The area between two borders that neither faction owns. For example the Federation - Klingon netural zone is the area between Federation space and Klingon space which neither faction claims.
neutrino - A neutral subatomic particle with a mass close to zero and half-integral spin, rarely reacting with normal matter.
Newb - New Player
Newbie - New Player
nexus - A series of connections leading to multiple things.
NHM - Nanite Health Monitor (Science Ability)
NI - Nadion Inversion (Engineering Ability)
nice - Something that is pleasant
NN - Neural Neutralizer (Science Ability)
no win senario - A simulation in which there is no way to win.
non-interference directive - This is the Prime Directive of Starfleet which prevents officers from interfering in other cultures.
Noob - New Player
npc - Non-player Character
NpI - Nanoprobe Infestation (Science Ability)
Nub - New Player
number 1 - A designation that can be given to the second in command of a starship.
number one - A designation that can be given to the second in command of a starship.
nx - A prefix for ship designations used for prototype ships.
NZ - Neutral Zone