aerosol: (adj. aerosolized) A tiny solid or liquid particle suspended in air or as a gas. Aerosols can be natural, such as fog or gas from volcanic eruptions, or artificial, such as smoke from burning fossil fuels.
allergy: The inappropriate reaction by the body’s immune system to a normally harmless substance. Untreated, a particularly severe reaction can lead to death.
buoyant: (n. buoyancy) An adjective for something that can float on or rise above some liquid or gas.
cell: (in biology) The smallest structural and functional unit of an organism. Typically too small to see with the unaided eye, it consists of a watery fluid surrounded by a membrane or wall. Depending on their size, animals are made of anywhere from thousands to trillions of cells. Most organisms, such as yeasts, molds, bacteria and some algae, are composed of only one cell.
clinical: (in medicine) A term that refers to diagnoses, treatments or experiments involving people.
colleague: Someone who works with another; a co-worker or team member.
component: Something that is part of something else (such as pieces that go on an electronic circuit board or ingredients that go into a cookie recipe).
condensation: The process of moisture in the air turning into a liquid as it comes into contact with a very cold surface. Or the term can refer to the liquid water that condenses out of the air.
condense: To become thicker, denser or to distill out the essence of something. This can occur, for instance, when moisture evaporates out of a liquid. Condense also can mean to change from a gas or a vapor into a liquid. (This can occur when water molecules in the air join together to become droplets of water.) It can also mean to identify the central meaning of something through analysis of data or through discussions.
contagious: An adjective for some disease that can be spread by direct contact with an infected individual or the germs that they shed into the air, their clothes or their environment. Such diseases…
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