Bacterium that thrives in moist conditions found in central heating and air conditioning systems that can cause Legionnaires' disease.

Blood cancer characterized by an abnormal increase in the number of white blood cells in the tissues of the body.

The theory positing a causal link between higher dietary saturated fat and cholesterol intake with plasma lipoprotein composition and heart disease.

An organ that plays a vital role in a range of important metabolic processes including detoxification, protein synthesis and glycogen storage.

Type of one-dimensional wave made of compressions and rarefactions when traveling through a medium. Characteristics of longitidunal waves are that the distance between the peaks increases and decreases with oscillations.

An acronym standing for: Fermentable Oligo-, Di- and Mono-saccharides and Polyols. The diet is based on the theory that foods containing the aforementioned forms of carbohydrates exacerbate symptoms of digestive disorders, such as irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD).

Relating to or involved in the production of lymphocytes and cells of blood, bone marrow, spleen, lymph nodes and thymus.

Mallet shaped bone in the middle ear located between the incus and the tympanic membrane (eardrum).

A disease that causes the formation of malignant cancer cells within the lining of the chest, abdomen or heart.

The suite of conditions associated with metabolic syndrome.

Different spectral distributions of light which produce the same response on the cones and are therefore visually identical.

The simplest organic compound - made up of four carbon-hydrogen bonds.

Smallest dose of ultraviolet radiation which causes a barely perceptible reddening of the skin. Depended on the skin color of an individual.

A single molecule that may bind chemically with like others to create a ring or chain termed a polymer.

The rate of death due to a disease or other cause.

The mucus membrane that lines the gastrointestinal tract and other body cavities. Plays an important role in protecting against pathogens.

A physical or chemical agent that changes the genetic material of an organism and increases the frequency of mutations above what would naturally occur.

An acute episode of heart disease marked by the damage of heart muscle due to insufficient blood supply to the heart muscle, also called a heart attack.

A form of the chemical element silicon that has introduced nanoporous holes in its microstructure.

Particles between 1 and 100 nanometers in size.

Part of the respiratory system, between the nose and the throat, at the level of the fleshy, flexible part at the back of the roof of the mouth.

Permit program established by the federal government in 1972 to control point-source discharges of wastewater to lakes, streams, wetlands and other surface waters.

An agency program run by the United States Department of Health and Human Services to maintain and report on toxicology.

All radioactive elements found in the environment naturally.

Diseases of the brain and nervous system.

A specialized cell of the nervous system that transmits electrochemical signals.

A poison that targets the nervous system, disrupting proper neuron-signalling.

Most commonly detected nitrosamine in water supplies. Likely carcinogenic and formed as a result of reactions with chloramine.

Noise cancellation is the methodology for cancelling sound through either active or passive means. Active noise cancelling uses signal processors to invert incoming signals and generate inverse waves for destructive interference. Passive noise cancelling utilizes insulation and sound-absorbing materials to reduce sound.

In terms of air pollution, regions are noncompliant if they fail to achieve standards set by NAAQS.

A standard by which water filters are judged.

A medical condition in which the accumulation of excess adipose tissue poses an adverse effect on health.

A flame retardant also denoted OctaBDE. Used in conjunction with other chemicals as a flame retardant in the housings of electrical and electronic equipment.

Member of a large class of gaseous, liquid or solid chemical compounds whose molecules contain carbon and hydrogen.

Commonly used as anti-fouling agents, an organic compound with one or more tin atoms in its molecules.

A pathway in cellular metabolism that re-creates the energy dense molecule adenosine triphosphate.

Oxidative rancidity occurs during a free radical process where the double bonds of an unsaturated fat are cleaved in the presence of oxygen, relasing volatile aldehydes and ketones.

A solid thermoplastic form of liquid formaldehyde.

Part of the autonomic nervous system which prepares the body for activities in the absence of stress, such as rest and digestion.

High energy particles made of electrons or protons and neutrons which are produced during radioactive decay.

A flame retardant also denoted PentaBDE. Most commonly used as a in flexible polyurethane foam and printed circuit boards.

The liquid within the inner ear (cochlea).

Nerve fibers which connect the central nervous system to limbs and organs.

Organic compounds that are resistant to environmental degradation through chemical, biological and photolytic processes.

Petroleum-based synthesized fertilizers were one of the major breakthroughs of the industrial and green revolutions. Today nearly half of all crop yields are directly attributable to synthetic commercial fertilizer. Although these fertilizers can boost yields, over time they lead to lower nutrient content in food, decreased soil biodiversity and are a major source of environmental pollution.

Transformation of matter from one state to another (e.g. melting from solid to liquid or condensing from vapor to liquid). Tremendous change in energy despite no change in temperature.

Achieved when you combine UV light rays with a TiO2-coated filter.

A salt or ester of phthalic acid, most commonly used as plasticizers in PVC.

Added during material production to impart varying degrees of elasticity.