a pattern of slow brain waves (alpha waves) in normal persons at rest with closed eyes, thought by some to be associated with an alert but daydreaming mind.
(physiol) the normal bursts of electrical activity from the cerebral cortex of a drowsy or inactive person, occurring at a frequency of 8 to 12 hertz and detectable with an electroencephalograph See also brain wave
See alpha wave
alpha rhythm n.
A pattern of smooth, regular electrical oscillations, as recorded by an electroencephalograph, that occur in the human brain when a person is awake and relaxed. Also called alpha wave.
- Alpha/beta pruning
alpha/beta pruning games, algorithm An optimisation of the minimax algorithm for choosing the next move in a two-player game. The position after each move is assigned a value. The larger this value, the better the position is for me. Thus, I will choose moves with maximum value and you will choose moves with minimum value […]
the letters of a language in their customary order. any system of characters or signs with which a language is written: the Greek alphabet. any such system for representing the sounds of a language: the phonetic alphabet. first elements; basic facts; simplest rudiments: the alphabet of genetics. the alphabet, a system of writing, developed in […]
- Alphabet code
a list of easily distinguishable words, each representing a letter of the alphabet, used in radio and telephonic communications.
- Alphabet soup
a soup containing small noodles in the shapes of letters of the alphabet. noun confusing or incomprehensible speech or language, as in abbreviations noun phrase An array of initialisms or acronyms: Their business-speak is alphabet soup