Definitions for Words in “Cyclosporine” Lymphocytes- “A type of white blood (leukocytes) cell that has a large nucleus and little cytoplasm. Lymphocytes are formed in the lymph nodes and provide about a quarter of all leukocytes. They are important in the body’s defense and are responsible for immune reactions as the presence of antigens stimulates them to produce antibodies.” (Concise Science Dictionary 408). Definitions for Words in “Fiber Optics” Decibel- “A unit to used to compare two power levels, usually applied to sound or electrical signals. The logarithmic scale is convenient as human audibility has a range of 1 to 1012 and one decibel, representing an increase of some 26%, is about the smallest change an ear can detect” (Concise Science Dictionary 186). Refractive Index- “Symbol n. The absolute refractive index of a medium is the ratio of the speed of electromagnetic radiation is free space to the speed of the radiation on that medium. As the refractive index varies with wavelength, the wavelength should be specified. The relative refractive index is the ratio of the speed of light in one medium to that in an adjacent medium” (Concise Science Dictionary 590). Definitions for Words in “Nuclear Energy” Alpha particle- “ A helium-4 nucleus emitted by a larger nucleus during the course of the type of radioactive decay known as alpha decay. As a helium-4 nucleus consists of two protons and two neutrons bound together as a stable entity the loss of an alpha particle involves a decrease in nucleon number of 4 and decrease of 2 in the atomic number. A stream of alpha particles is known as an alpha- ray or alpha-radiation” (Concise Science Dictionary 23). Definitions for Words in “Penicillin” Gram Stain- “A staining method use to differentiate bacteria. The bacterial sample is smeared on a microscope slide, stained with a violet dye, treated with acetone-alcohol (a decolorizer), and finally counterstained with a red dye. Gram-positive bacteria retai the first dye, appearing blue-black under the microscope. In Gram-negative bacteria, the acetone-alcohol washes out the violet dye and the counterstain is taken up, the cells appearing red. It is name after the Danish bacteriologist H. C. J. Gram (1853-1938), who first described the technique (since modified) in 1884” (Concise Science Dictionary 299). Definitions for Words in “Post-it Note” Polymer- “A substance having large molecules consisting of repeated units (the monomers). There are a number of natural polymers, such as polysaccharides. Synthetic polymers are extensively used in plastics. Polymers do not have a definite formula since they consist of chains of different lengths” (Concise Science Dictionary 546). Monomer- (See above) Definitions for Words in “Transistor” Metallurgy- “The branch of applied science concerned with the production of metals from their ores, the purification of metals, the manufacture of alloys, and the use and performance of metals in engineering practice. Process metallurgy is concerned with the extraction and production of metals, while physical metallurgy concerns the mechanical behavior of metals” (Concise Science Dictionary 435). Definitions for Words in “Video Games” Oscilloscope- “An instrument based on the cathode-ray tube that provides a visual image of electrical signals. The horizontal deflection is usually provided by an internal time base, which causes the beam to sweep across the screen at a specified rate. The signal to be investigated is fed to the vertical deflection plates after amplification. Thus the beam traces a graph of the signal against time” (Concise Science Dictionary 113).