Letter after alpha

noun

1. The 2nd letter of the Greek alphabet see Alphabet Table
2. Something or someone designated with the name beta or the Greek letter β especially denoting the second in position, order, or class
3. A nearly complete prototype of a product (such as software)

   "the beta version"

4. Beta particle

   "beta emissions"

5. A measure of the risk potential of a stock or an investment portfolio expressed as a ratio of the stock's or portfolio's volatility to the volatility of the market as a whole

   "Beta measures a stock's price volatility—or risk—compared with the market in general …"

6. Beta wave

   "The findings could also help scientists better understand other beta-associated disorders, such as Parkinson's disease or obsessive compulsive disorder …"

adjective

1. Second in position in the structure of an organic molecule from a particular group or atom

   "beta substitution"

noun

1. An electrical rhythm of the brain with a frequency of 13 to 30 cycles per second that is associated with normal conscious waking experience

adjective

1. Of, relating to, or being a beta-receptor

   "beta-adrenergic blocking action"

noun

1. An amyloid that is derived from a larger precursor protein and is the primary component of plaques characteristic of Alzheimer's disease

   "… beta-amyloid is the main component of the plaques, or brain lesions, found in the estimated 4 million Americans afflicted with Alzheimer's disease."

noun

1. Any of a class of drugs (such as propranolol) that decrease the rate and force of heart contractions and lower high blood pressure by blocking the activity of beta-receptors

noun

1. An isomer of carotene found in dark green and dark yellow vegetables and fruits

noun

1. Any of the insulin-secreting pancreatic cells in the islets of Langerhans

noun

1. A radioactive nuclear transformation governed by the weak force in which a nucleon (such as a neutron) changes into a nucleon (such as a proton) of the other type with the emission of either an electron and an antineutrino or a positron and a neutrino

noun

1. An endorphin of the pituitary gland having a much greater analgesic potency than morphine