alpha staten.

Brit.

/ˈalfə ˌsteɪt/, U.S.

/ˈælfə ˌsteɪt/

Origin: Formed within English, by compounding. Etymons: alpha adj., state n.

Etymology: < alpha adj. + state n.

1. Chiefly Metallurgy. The state of a substance designated by the term alpha (cf. alpha adj. 2).

ΚΠ

1848 D. P. Gardner Med. Chem. Use of Students 169 Oxygen... As a gas it is a very active substance, but in the alpha state it is the most active in nature.

1867 Amer. Jrnl. Sci. 94 94 Whether isometric silicon, crystals of which have been obtained artificially, is simply silicon in the alpha state, or not, cannot be at once decided.

1901 Jrnl. Geol. (Chicago) 9 629 When heated to a temperature not higher than 700 °C., iron remains in what is known as the alpha state.

1922 Trans. Amer. Soc. Steel Treating 2 273 In steel No. 2..the effect of the high manganese in suppressing the rate of transportation of the gamma to the alpha state, is sufficient.

1988 Progress Quantum Electronics 12 30 The uv exposure converts adsorbed species from the beta to the alpha state when the surface loading of chlorine is low.

2. Psychology. A state in which the dominant rhythm of the brain's electrical activity is alpha waves; (hence) a state of extreme mental relaxation supposedly encountered when the brain is dominated by alpha waves.

ΚΠ

1957 Electroencephalogr. & Clin. Neurophysiol. 9 502/2 O'Hare..used an alerting stimulus which preceded the visual stimulus by 2 sec. thus tending to produce blocking rather than a resting alpha state.

1968 Psychol. Today Apr. 56 The alpha state was commonly reported as ‘not thinking’, ‘letting the mind wander’, or ‘feeling the heart beat’.

1971 New Scientist 12 Aug. 382/2 They have hit on the trick of tuning the human subject in to his own alpha rhythms by telling him by means of a light or a sound when his electrical brain pattern reaches an alpha state.

1971 N.Y. Times 12 Sept. vi. 136/4 A cult has been growing up around the ‘alpha state’.

1996 C. Stormer Reflexology (Teach Yourself) iv. 32 Lack of conversation during the massage allows the recipient to drift into the tranquil alpha state and reconnect with the inner self.

2009 N.Y. Times (National ed.) 24 Sept. b14/2 Hepner said she had no idea the match had dragged on for more than six hours. ‘There's time distortion when you are in the alpha state—like a hypnotic state,’ she said.

This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	alpha state
释义	alpha staten. Brit. /ˈalfə ˌsteɪt/, U.S. /ˈælfə ˌsteɪt/ Origin: Formed within English, by compounding. Etymons: alpha adj., state n. Etymology: < alpha adj. + state n. 1. Chiefly Metallurgy. The state of a substance designated by the term alpha (cf. alpha adj. 2). ΚΠ 1848 D. P. Gardner Med. Chem. Use of Students 169 Oxygen... As a gas it is a very active substance, but in the alpha state it is the most active in nature. 1867 Amer. Jrnl. Sci. 94 94 Whether isometric silicon, crystals of which have been obtained artificially, is simply silicon in the alpha state, or not, cannot be at once decided. 1901 Jrnl. Geol. (Chicago) 9 629 When heated to a temperature not higher than 700 °C., iron remains in what is known as the alpha state. 1922 Trans. Amer. Soc. Steel Treating 2 273 In steel No. 2..the effect of the high manganese in suppressing the rate of transportation of the gamma to the alpha state, is sufficient. 1988 Progress Quantum Electronics 12 30 The uv exposure converts adsorbed species from the beta to the alpha state when the surface loading of chlorine is low. 2. Psychology. A state in which the dominant rhythm of the brain's electrical activity is alpha waves; (hence) a state of extreme mental relaxation supposedly encountered when the brain is dominated by alpha waves. ΚΠ 1957 Electroencephalogr. & Clin. Neurophysiol. 9 502/2 O'Hare..used an alerting stimulus which preceded the visual stimulus by 2 sec. thus tending to produce blocking rather than a resting alpha state. 1968 Psychol. Today Apr. 56 The alpha state was commonly reported as ‘not thinking’, ‘letting the mind wander’, or ‘feeling the heart beat’. 1971 New Scientist 12 Aug. 382/2 They have hit on the trick of tuning the human subject in to his own alpha rhythms by telling him by means of a light or a sound when his electrical brain pattern reaches an alpha state. 1971 N.Y. Times 12 Sept. vi. 136/4 A cult has been growing up around the ‘alpha state’. 1996 C. Stormer Reflexology (Teach Yourself) iv. 32 Lack of conversation during the massage allows the recipient to drift into the tranquil alpha state and reconnect with the inner self. 2009 N.Y. Times (National ed.) 24 Sept. b14/2 Hepner said she had no idea the match had dragged on for more than six hours. ‘There's time distortion when you are in the alpha state—like a hypnotic state,’ she said. This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021). < n.1848
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