(cytology) Any normal cell of an organism that is not involved in reproduction; a cell that is not on the germline.

(cytology) A thick, fairly rigid, layer formed around individual cells of bacteria, Archaea, fungi, plants, and algae (but not animals and other protists which generally have cell membranes without cell walls). The cell wall is external to the cell membrane and serves a structural function helping the cell maintain its shape and protecting the cell from damage.

(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