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Hybrid

/ˈhīˌbrid/ Noun, pl. hybrids 1. An offspring resulting from cross-breeding. (wikipedia.org) 2. (Genetics) an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species. (wordnetweb.princeton.edu) 2. Offspring resulting from cross-breeding different entities, e.g. two different species or two purebred parent strains. (wiktionary.org) 3. Something of mixed origin or composition. (wiktionary.org) 4. A complex formed by joining two complementary strands of nucleic acids. (biology-online.org) Adjective 1. Of or pertaining to the offspring produced from crossbreeding. (biology-online.org) Word origin: From Latin hybrida, variant of ibrida “mongrel,” specifically “offspring of a tame sow and a wild boar,” of unknown origin but probably from Greek and somehow related to...

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Hypoxia

Noun 1. A condition in which there is oxygen deficiency in a habitat or a body part. (biology-online.org) 2. May refer to: Hypoxia (environmental), reduced dissolved oxygen content of a body of water detrimental to aerobic organisms. Hypoxia (medical), a pathological condition in which the body as a whole or region of the body is deprived of adequate oxygen supply. (wikipedia.org) 3. A reduced concentration of dissolved oxygen in an aquatic environment. (wiktionary.org) adj.,...

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Hypoxia, brain

1. A reduction in brain oxygen supply due to anoxemia (a reduced amount of oxygen being carried in the blood by hemoglobin), or to a restriction of the blood supply to the brain, or both. Severe hypoxia is referred to as Anoxia, and is a relatively common cause of injury to the Central Nervous System. Prolonged brain anoxia may lead to brain death or a persistent vegetative state. Histologically, this condition is characterized by neuronal loss which is most prominent in the hippocampus; globus pallidus; cerebellum; and inferior olives. (online-medical-dictionary.org)   Syn: Hypoxia,...

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Hypoxia, cell

1. A condition of decreased oxygen content at the cellular level. (online-medical-dictionary.org) 2. In cell hypoxia, the cells are unable to use the oxygen effectively. This may be due to a disruption in the activity of oxidative phosphorylation enzymes. An example is the physiological effects of drinking alcoholic beverages....

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