General

General

General nature or nature terms.

Industry: Natural environment

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General

ionic bond

Biology; General

A chemical bond in which atoms of opposite charge are held together by electrostatic attraction.

isotonic

Biology; General

Term applied to two solutions with equal solute concentrations.

isotopes

Biology; General

Atoms with the same atomic number but different numbers of neutrons; indicated by adding the mass number to the element's name, e.g., carbon 12 or 12C.

ice age

Biology; General

Interval of geologic time between 2 million and 10,000 years ago during which the northern hemisphere experienced several episodes of continental glacial advance and retreat along with a climatic ...

ileum

Biology; General

The third and last section of the small intestine.

immune system

Biology; General

One of the eleven major body organ systems in vertebrates; defends the internal environment against invading microorganisms and viruses and provides defense against the growth of cancer cells.