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Conduction of electrical current through a metal or along a metallic surface.

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Nitrogenases

A class of enzymes found in bacteria within root nodules in some plants, which catalyze reactions by which N2 molecules from the air are converted to ammonia.

 

Adhesive Forces

Forces of attraction between a liquid and another surface.

Cathodic Protection

Protection of a metal (making ir a cathode) against corrosion by attaching it to a sacrifical anode of a more easily oxidized metal.

Daughter Nuclide

Nuclide that is produced in a nuclear decay.

 

Addition Reaction

A reaction in which two atoms or groups of atoms are added to a molecule, one on each side of a double or triple bond. Types of addition reaction include electrophilic, nucleophilic (polar) and free radical addition (non-polar).

Inhibitory Catalyst

An inhibitor, a catalyst that decreases the rate of reaction.

Molecular Weight

The mass of one molecule of a nonionic substance in atomic mass units.

Rate-law Expression

Equation relating the rate of a reaction to the concentrations of the reactants and the specific rate of the constant.

Pineapple literally "erodes" the tongue

Everyone who has ever tried fresh pineapple knows that if you eat too much, your lips and tongue hurt for a while. This is because the pineapple contains an enzyme called bromelain. This enzyme literally "erodes" the tongue.

Breeder Reactor

A nuclear reactor that produces more fissionable nuclear fuel than it consumes.