Practice Essentials. Chronic lymphocytic leukemia (chronic lymphoid leukemia, CLL) is a monoclonal disorder characterized by a progressive accumulation of functionally incompetent lymphocytes (see the image below). It is the most common form of leukemia found in adults in Western countries.
â¢ OIL PAINTING (noun) The noun OIL PAINTING has 2 senses: 1. a picture painted with oil paints. 2. the art or method of painting with oil paints. Familiarity information: OIL PAINTING used as a noun is rare.
Princeton's WordNet (0.00 / 0 votes) Rate this definition: oil (noun). a slippery or viscous liquid or liquefiable substance not miscible with water. oil, oil color, oil colour (noun). oil paint containing pigment that is used by an artist.