What is the definition or description of: hypoxia?

Low oxygen: Hypoxia means that tissue is not getting enough oxygen. This can either apply to the whole body, in which case there is too little oxygen in the blood, or it can apply to just specific organs or tissues.

Low Oxygen Supply: Hypoxia, is a condition in which the body as a whole or a region of the body is deprived of adequate oxygen supply. It is classified into 4 groups: - hypoxemic - oxygen is low - anemic - decreased ability for hemoglobin to carry oxygen. - ischemic - decreased blood flow. - histotoxic - oxygen is reaching the cells, but the cells are unable to use the oxygen ( cyanide).