Aviation Dictionary

On this page you will find a searchable and comprehensive alphabetical list of aviation terms. You can help us make it the most comprehensive list in the world. If we have missed anything, click on the ‘send us your word’ button to send us your word, acronym or definition and we will consider adding it to our dictionary.

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Hypoxia

A condition that occurs in the human body because of a lack of oxygen. The higher we fly, the less oxygen that is available to us. Smaller aircraft are normally limited to fly below 10 000 feet as no oxygen is carried on board, whereas larger aircraft are pressurised and carry extra oxygen. A sign of possible hypoxia is a blueish sign around the lips and fingernails.

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