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B cell a type of white blood cell, produced in the bone marrow, that makes antibodies that fight off disease.
brain cell a cell in the brain, esp. a neuron.
cell block a unit consisting of multiple cells in a prison.
cell line a cell culture produced from a single cell.
cell membrane the semipermeable membrane that encloses the contents of a cell; plasma membrane.
cell phone a mobile telephone that operates using radio signals and therefore requires no wires. A cell phone is part of a system composed of many low-power radio transmitters located in "cells" across a region and will receive a radio signal from whichever transmitter in the system is closest; cellular phone.
cell wall the rigid outermost layer of a plant cell, which is made of cellulose.
dry cell an electric cell in which the electrolyte is in a paste, treated with an absorbent, or otherwise protected against spilling.
fuel cell any of various devices in which continuous electrical energy is produced from the reaction between a fuel, such as liquid hydrogen, and an oxidant.
germ cell a cell whose principal function is reproduction; egg or sperm cell.
hot cell an enclosure designed to house radioactive materials in a safe manner so they can be worked on or tested by remote control.
nerve cell a neuron.
padded cell a room, cell, or the like that is extensively lined with padding and in which potentially violent prisoners or patients may be confined without risk of injuring themselves.
photoelectric cell an electric cell in which the force of the current changes according to the variations of light or other radiation falling on it; electric eye.
photovoltaic cell a cell that produces electromotive force when it is exposed to radiation, esp. light; solar cell.
primary cell a battery cell in which electric current is generated by an irreversible electrochemical reaction, and which therefore cannot be recharged efficiently.
red blood cell a disk-shaped cell, usu. lacking a nucleus, that carries oxygen to the body's tissues; erythrocyte.
selenium cell a photoconductive cell made by placing a thin strip of selenium between two metal electrodes.
sickle cell anemia a hereditary form of anemia caused by the presence of abnormal sickle-shaped red blood cells and abnormal hemoglobin, resulting in abdominal pain and leg ulcers.
solar cell see "photovoltaic cell."