natural spring a natural flow of ground water
natural covering a natural object that covers or envelops
spiral spring a spring that is wound like a spiral
neutral spirits nonflavored alcohol of 95 percent or 190 proof used for blending with straight whiskies and in making gin and liqueurs
thermal spring a natural spring of water at a temperature of 70 F or above
transpiring that is passing through
naturally occurring existing by nature and without artificial aid
naturalistic representing what is real; not abstract or artificial
naturalisation the proceeding whereby a foreigner is granted citizenship
naturalization the proceeding whereby a foreigner is granted citizenship
natural science the sciences involved in the study of the physical world and its phenomena
hairspring a fine spiral spring that regulates the movement of the balance wheel in a timepiece
air spring a mechanical device using confined air to absorb the shock of motion
natural process a process existing in or produced by nature
natural depression a sunken or depressed geological formation
neutralisation action intended to nullify the effects of some previous action
needle bearing bearings containing small metal balls
natural fiber fiber derived from plants or animals
nitrogen-bearing of or relating to or containing nitrogen
natural fibre fiber derived from plants or animals