immunity independent of antibody but dependent on the recognition of antigen by T cells and their subsequent destruction of cells bearing the antigen or on the secretion by T cells of lymphokines that enhance the ability of phagocytes to eliminate the antigen.
cell-mediated immunity n.
Immunity resulting from a cell-mediated immune response. Also called cellular immunity.
Immunity resulting from a cell-mediated immune response. Also called cellular immunity. Compare humoral immunity.
the semipermeable membrane enclosing the cytoplasm of a cell. Historical Examples noun a very thin membrane, composed of lipids and protein, that surrounds the cytoplasm of a cell and controls the passage of substances into and out of the cell Also called plasmalemma, plasma membrane cell membrane n. The semipermeable membrane that encloses the cytoplasm […]
pertaining to the sky or visible heaven, or to the universe beyond the earth’s atmosphere, as in celestial body. pertaining to the spiritual or invisible heaven; heavenly; divine: celestial bliss. of or relating to celestial navigation: a celestial fix. (initial capital letter) of or relating to the former Chinese Empire or the Chinese people. an […]
cellular phone. Contemporary Examples cell phone (cellular telephone) A portable telephone that uses wireless cellular technology to send and receive phone signals. This technology works by dividing the Earth into small regions called cells. Within each cell the wireless telephone signal goes over its assigned bandwidth to a cell tower, which relays the signal to […]
(in plant cells) a plate that develops at the midpoint between the two groups of chromosomes in a dividing cell and that is involved in forming the wall between the two new daughter cells. cell plate A partition that is formed during telophase of cell division in plants and some algae and that separates the […]