- one of the possible positions of an atom or group in a compound.
- one of two or more isomeric compounds.
Origin of beta
Examples from the Web for beta
Beta amyloid, which OL-1 is meant to lower, was first implicated in the disease at its identification by Alois Alzheimer in 1906.
Most researchers think the disease is caused by the build-up of beta amyloid.
Beta amyloid, he thinks, is one of many things that can stress cellular garbage disposal in the brain.
Or, if Wischik is right, beta amyloid has been the wrong focus all along.
Pharmaceutical company Eli Lilly & Co. developed an imaging agent called Amyvid, which binds to beta amyloid in the brain.
They have for the sake of convenience been called the alpha, beta, and gamma rays.A Brief Account of Radio-activity|Francis Preston Venable
Swarming on Beta maritima and other plants in July (Lucas, 1920a).The Biotic Associations of Cockroaches|Louis M. Roth
It was impossible to complete the Beta circuit, which short-circuited.
They wouldn't live to be crushed by disappointment when the Sky Fire receded as Beta went into the long swing toward apastron.Oomphel in the Sky|Henry Beam Piper
Beta and Allan, warmly and snugly sheltered in their cave, cared nothing for the storm.Darkness and Dawn|George Allan England
British Dictionary definitions for beta (1 of 2)
- involving or relating to electronsbeta emitter
- relating to one of two or more allotropes or crystal structures of a solidbeta iron
- relating to one of two or more isomeric forms of a chemical compound
Word Origin for beta
British Dictionary definitions for beta (2 of 2)
Word Origin and History for beta
second letter of the Greek alphabet, c.1300, from Greek, from Hebrew/Phoenician beth (see alphabet); used to designate the second of many things. Beta radiation is from 1899 (Rutherford). Beta particle is attested from 1904.