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.
Oil paint - History. 1  The technical history of the introduction and development of oil paint, and the date of introduction of various additives (driers, thinners) is stillâdespite intense research since the mid 18th centuryânot well understood.