an electrode placed between the screen grid and anode of a valve. Its negative potential, relative to both screen and anode, prevents secondary electrons from the anode reaching the screen
- Suppressor mutation
suppressor mutation sup·pres·sor mutation (sə-prěs’ər) n. A mutation that alters the anticodon in a tRNA so that it is complementary to a termination codon, thus suppressing termination of the amino acid chain.
noun, Immunology. 1. a T cell capable of inhibiting the activity of B cells and other T cells. suppressor T cell n. A T cell that reduces or suppresses the immune response of B cells or of other T cells to an antigen.
suppurant sup·pu·rant (sŭp’yə-rənt) adj. Causing or inducing suppuration. n. An agent that promotes the suppuration process.
verb (used without object), suppurated, suppurating. 1. to produce or discharge pus, as a wound; maturate. verb 1. (intransitive) (pathol) (of a wound, sore, etc) to discharge pus; fester suppurate sup·pu·rate (sŭp’yə-rāt’) v. sup·pu·rat·ed, sup·pu·rat·ing, sup·pu·rates To form or discharge pus.