Existing in nature. • Existing in the nature of a person or thing; innate, not acquired or learned. • Normally associated with a particular person or thing; inherently related to the nature of a thing or creature. • As expected; reasonable, normal; naturally arising from the given circumstances. • Formed by nature; not manufactured or created by artificial processes. • Pertaining to death brought about by disease or old age, rather than by violence, accident etc. • Having an innate ability to fill a given role or profession, or display a specified character. • Designating a standard trigonometric function of an angle, as opposed to the logarithmic function. • Closed under submodules, direct sums, and injective hulls. • Neither sharp nor flat. Denoted ♮. • Containing no artificial or man-made additives; especially (of food) containing no colourings, flavourings or preservatives. • Pertaining to a decoration that preserves or enhances the appearance of the original material; not stained or artificially coloured. • Pertaining to a fabric still in its undyed state, or to the colour of undyed fabric. • Pertaining to a dice roll before bonuses or penalties have been applied to the result. • Not having used anabolic steroids or other performance-enhancing drugs. • Uncircumcised; intact. • Bidding in an intuitive way that reflects one's actual hand. • Pertaining to birth or descent; native. • Having a given status (especially of authority) by virtue of birth. • Related genetically but not legally to one's father; born out of wedlock, illegitimate. • Related by birth; genetically related.