A answered. Atrial fibrillation can be caused by a number of different things that predispose the heart to arrhythmias. Most commonly, longstanding high blood pressure is the cause. Other causes include heart disease such as blockage in the coronary vessels or diseases such as pneumonia or COPD.
Definition: When an artist deliberately restricts the number of colors they use in a painting, they're said to be using a limited palette. (A palette being what paints are squeezed out onto, ready for use.). Also Known As: Restricted palette.
2. the set of colors on such a board. 3. the range of colors used by a particular artist. 4. the variety of techniques or range of any art: a composer's musical palette. 5. the complete range of colors made available by a computer graphics card, from which a user or program may choose those to be displayed.