natural resin a plant exudate
natural gas a fossil fuel in the gaseous state
naturalness the quality of being natural or based on natural principles
naturalise make into a citizen
naturalize make into a citizen
natural process a process existing in or produced by nature
natural virtue one of the four virtues derived from nature
naturally in a natural or normal manner
natural resource resources (actual and potential) supplied by nature
natural order the physical universe considered as an orderly system subject to natural (not human or supernatural) laws
natural glass magma of any composition that cooled very rapidly
naturalism an artistic movement emphasizing realistic description
natural law a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society
naturalist a biologist knowledgeable about botany and zoology
natural relating to or concerning the physical world
natural rubber an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
natural science the sciences involved in the study of the physical world and its phenomena
natural resources resources (actual and potential) supplied by nature
naturalized introduced from another region and persisting without cultivation
naturally occurring existing by nature and without artificial aid