A polyhedral cell in the epidermis having many spines that form intercellular bridges.

(anatomy) Any of the cylindrical photoreceptor cells in the retina that function in dim light levels.

(anatomy) Any of the photoreceptor cells in the retina that are responsible for colour vision in relatively bright light.

(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.

(anatomy) A type of cell, in the nervous system, that provides support for the neurons.

plural of cell-phone

a voltaic cell consisting of two metal electrodes connected by an electrolyte

a photoelectric cell that uses a strip of selenium as the electron source

A container containing an electrolyte and two electrodes; used to produce direct current electricity; one or more of them constitute a battery.