NATURAL

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natural

1. Music
a. not sharp or flat
b. denoting a note that is neither sharp nor flat
c. (of a key or scale) containing no sharps or flats
2. Music of or relating to a trumpet, horn, etc., without valves or keys, on which only notes of the harmonic series of the keynote can be obtained
3. Cards
a. (of a card) not a joker or wild card
b. (of a canasta or sequence) containing no wild cards
c. (of a bid in bridge) describing genuine values; not conventional
4. based on the principles and findings of human reason and what is to be learned of God from nature rather than on revelation
5. Music
a. an accidental cancelling a previous sharp or flat.
b. a note affected by this accidental
6. Pontoon the combination of an ace with a ten or court card when dealt to a player as his or her first two cards

tropical year

tropical yearclick for a larger image
The period between two successive vernal equinoxes, the time the earth takes to complete one orbit around the sun relative to the first point of Aries. Its length was 365 days 5 h 48 min and 45.19 s in 2000, and it is changing by 0.00000006162 x y days (y in Julian years from 2000), or about 5 milliseconds/year. The tropical year differs from the solar year by 1 part in 26,000, since this is the period of the earth's precession about its rotational axis combined with the precession of the perihelion of the earth's orbit. Also called an astronomical, equinoctial, natural, or solar year. It contains one complete cycle of seasons.

NATURAL

An integrated 4GL from Software AG, Germany. The menu-driven version is SUPER/NATURAL.

Natural 2 is a major upgrade to Natural 1.

Version 2.1.7 in the MVS environment (June 1995, also available for Unix).

Natural works with DB2 and various other databases, but Natural and Adabas normally go together. There are many products available in the "Natural" family, including SuperNatural, Natural for Windows, Entire Connection (enables up/downloading and interaction with Excel) and Esperant.

NATURAL

An earlier fourth-generation language from Software AG, Reston, VA, that ran on a variety of computers from micro to mainframe. See fourth-generation language.
References in periodicals archive ?
They derive a modified formula for the optimal import tariff and show that a country's import tariff is more distorted whenever the influenced country is small relative to the influencing country and whenever natural trade barriers between the two countries are small.
Creative Nature took the title of" Best Organic Product for their Organic Peruvian Cacao Nibs at the Brighton Natural Trade Show.
The company, who already supply Snapz to over 300 schools across the UK, also recently won prestigious awards for Best Product and Best Stand at the Natural Trade Show in Harrogate.
Hernan Eduardo Vallejo, Universidad de los Andes, Colombia, "Colombia's Natural Trade Partners and Its Bilateral Trade Performance: Evidence from 1960 to 1996"