I Scientific & Educational Abbreviation

Indicator

A compound that changes color at a particular pH, or over a particular narrow range of pH, used or In intelligence usage, an item of information which reflects the intention or capability of an adversary to adopt or reject a course of action. A mechanical device with points to a scale to provide a visual perspective of the state of a component.

Isle

Island

A clay produced by the chemical weathering of granite through hydrolysis.

International

Mostly means something involving more than a single country.

Interior

Intermediate

Any chemical compound that is primarily of interest as one of the steps between the starting material and the final product. It is usually best to design chemical processes so that intermediates do not need to be transported from place or stored in large quantities. Methyl isocyanate, an intermediate in the manufacture of certain pesticides, is a good example.

Illinois

Iodine

Symbol:"I" Atomic Number:"53" Atomic Mass: 126.90amu. Iodine is member of the halogen family. Iodine is a bluish black solid but can quickly become a bluish gas. It is less reactive than other halogens. The element is used as an ingredient in medicine, as a dye, and as an essential element in your diet.

Isoleucine

A naturally occuring amino acid with a nonpolar side chain.

Icing

Icing caused by freezing sea spray or snow forming a layer of ice on deck and superstructure when operating in low temperatures may have major impact on the safety and general operation of a vessel.