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nobody
nocent
nociception
nociceptive
nociceptor
nock
noct-
nocti-
noctiluca
noctilucent
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noble gas
no·ble gas (plural no·ble gas·es or no·ble gass·es)


noun 
Definition:
 
inert rare gas: a chemically inert rare gas belonging to group 18 of the periodic table. Helium, neon, argon, krypton, xenon, and radon are noble gases.
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