T Cells

Science / Biology / T Cells: The type of lymphocyte responsible for cell-mediated immunity; also protects against infection by parasites, fungi, and protozoans and can kill cancerous cells; circulate in the blood and become associated with lymph nodes and the spleen.


Science / Biology / Photosynthesis: The process by which plant cells use solar energy to produce ATP. The conversion of unusable sunlight energy into usable chemical energy, associated with the actions of chlorophyll. MORE

Glial Cells

Science / Biology / Glial Cells: Nonconducting cells that serve as support cells in the nervous system and help to protect neurons. MORE

Tight Junctions

Science / Biology / Tight Junctions: Junctions between the plasma membranes of adjacent cells in animals that form a barrier, preventing materials from passing between the cells. MORE


Science / Genetics / X-Inactivation: The repression of one of the two x-chromosomes in the somatic cells of females as a method of dosage compensation: at an early embryonic stage in the normal female, one of the two x-chromosomes underg MORE

Body-Centered Cubic (BCC)

Business / Machine Shop / Body-Centered Cubic (BCC): One of the common types of unit cells described as a cube with an atom at each of the eight corners and a single atom at the center of the cell. This arrangement is typical of the ferritic form of iro MORE

Cytoxic T Cells

Science / Biology / Cytoxic T Cells: T cells that destroy body cells infected by viruses or bacteria; also attack bacteria, fungi, parasites, and cancer cells and will kill cells of transplanted organs if they are recognized as foreign; MORE