Cerebral hypoxia refers to the largest parts of the brain, called the cerebral hemispheres. However, the term is often used to refer to a lack of oxygen supply to the entire brain. In cerebral hypoxia, sometimes only the oxygen supply is interrupted. Brain cells are extremely sensitive to a lack of oxygen. Some brain cells start dying less than 5 minutes after their oxygen supply disappears. As a result, brain hypoxia can rapidly cause severe brain damage or death.
Also found in: Dictionary, Thesaurus. Related to irrelevantly: relevant. Unrelated or inapplicable to the matter in issue. Irrelevant evidence has no tendency to prove or disprove any contested fact in a lawsuit. adj. not important, pertinent, or germane to the matter at hand or to any issue before the court.
To know the relevance of something is to know why it matters or how it is important. I don't understand the relevance of this discussion: it doesn't seem important to me. If you don't understand the relevance of the word relevant to the discussion of the meaning of the word relevance, we're gonna have some trouble. When something is relevant, it matters. Its relevance is clear. Relevance is simply the noun form of the adjective relevant, which means important to the matter at hand.. Artists and politicians are always worried about their relevance. If they are no longer relevant, they may not keep their job. Someone without relevance might be called irrelevant..