Beta-oxidation
a process by which fatty acids are degraded, involving oxidation of the beta carbons and removal of successive two-carbon fragments from the fatty acid.
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- Beta particle
an electron or positron emitted from an atomic nucleus in a certain type of radioactive decay. Historical Examples A Brief Account of Radio-activity Francis Preston Venable noun a high-speed electron or positron emitted by a nucleus during radioactive decay or nuclear fission beta particle A high-speed electron or positron, usually emitted by an atomic nucleus […]
- Beta radiation
beta radiation beta radiation [(bay-tuh)] Note: Beta radiation, unlike alpha radiation, has some penetrating power and can pass through clothing and wooden walls.
- Beta ray
a stream of beta particles. Historical Examples The Breath of Life John Burroughs noun a stream of beta particles beta ray A stream of beta particles.
- Bettong
any of several marsupials of the genus Bettongia, of Australia and nearby regions, comprising the short-nosed rat-kangaroos, characterized by short, rounded ears, long hind feet, and a naked muzzle tip: all four species are endangered. noun a species of rat kangaroo of Australia having a short nose
- Beta rhythm
a pattern of high-frequency brain waves (beta waves) observed in normal persons upon sensory stimulation, especially with light, or when they are engaging in purposeful mental activity. noun (physiol) the normal electrical activity of the cerebral cortex, occurring at a frequency of 13 to 30 hertz and detectable with an electroencephalograph See also brain wave