(immunology) A form of B cell that produces antibodies after having reacted with its specific antigen in follicle centers.

(immunology) A lymphocyte, developed in the bursa of birds and the bone marrow of other animals, that produces antibodies and is co-responsible for the immune system.

(immunology) A lymphocyte, from the thymus, that can recognise specific antigens and can activate or deactivate other immune cells.

(genetics) A biological tissue or group of individual cells that are genetically identical as a result of dividing mitotically from a single progenitor cell.

(biology) The scientific theory that all living organisms are made of cells as the smallest functional unit.

plural of cell line

(physics) a device that absorbs radiant energy and converts it into electrical energy

A semiconductor device that converts the radiant energy of sunlight into electrical energy

A transducer that generates an electric current proportional to the light intensity.

A loop of moving fluid (such as air or water) in which the motion results from differences in density caused by differences in temperature.