PSIとは 意味・読み方・使い方

語源 1

From 中期英語 psi, from Latin psī, from Ancient Greek ψεῖ (pseî), the name for the twenty-third letter of the alphabet (Ψ, ψ).

発音

Greek letter

• enPR: psī, sī, IPA: /psaɪ/, /saɪ/
• 異形同音異義語: xi, sigh, scye, sai, Si (all for the latter pronunciation only)
• 韻: -aɪ

Psychic energy

• enPR: sī, IPA: /saɪ/
• 異形同音異義語: xi, sigh, scye, sai, Si
• 韻: -aɪ

名詞

psi (countable and uncountable, plural psis)

1. (countable) The twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek.
2. (uncountable, parapsychology, science fiction) A form of psychic energy.
   • 1993, Will Self, My Idea of Fun:

     ‘Come, lad,’ he said. ‘We will take tea together and speak of the noumenon, the psi and other more heterogenous phenomena.’

   • 1996, Michael F. Stoeber, Hugo Anthony Meynell, Critical Reflections on the Paranormal (page 60)

     When an event is classified as a psi phenomenon, it is claimed that all known channels for the apparent interaction have been eliminated.

   • 2005, Michael Ashley, Transformations: The History of the Science Fiction Magazine 1950 to 1970, Liverpool: Liverpool University Press, page 133:

     It traces the growth of homo gestalt with the uniting of six lovely outcasts of society who have psi powers and come together as a hive mind, thus creating a gestalt super-being.

派生語

• psi function
• psi particle

参考

• (Greek-script letter names) alpha, beta, gamma, delta, epsilon, zeta, eta, theta, iota, kappa, lambda, mu, nu, xi, omicron, pi, rho, sigma, tau, upsilon, phi, chi, psi, omega

語源 2

Initialism of pounds per square inch.

別の表記

• P.S.I., PSI

略号

psi

1. Pound per square inch (an imperial unit of pressure)
   • 2017 December 12, National Transportation Safety Board, “1.3.5 Electrical Generation and Distribution System”, in Marine Accident Report: Sinking of US Cargo Vessel SS El Faro, Atlantic Ocean, Northeast of Acklins and Crooked Island, Bahamas, October 1, 2015‎, archived from the original on 15 May 2022, pages 36–37:

     Each turbogenerator consisted of a steam turbine, powered by 900 psi of superheated steam, that was coupled by a set of reduction gears to a General Electric marine alternating-current generator operating at 1,800 rpm. Each generator had a capacity of 2,000 kilowatts of three-phase power at 450 volts and 60 hertz. The main 450-volt switchboard was energized by the two turbogenerators. The emergency switchboard, in the emergency generator room, was fed from the main switchboard through an electrical tie.

   • 2024 March 23, “Yield Strength of Steel: A Comprehensive Guide”, in Unionfab‎:

     For M2, this is typically around 3250 MPa (471,000 psi) when tempered at 300°F (149°C).

関連する語

• psia

参照

アナグラム

• IPS, IPs, ISP, Isp, PIs, SIP, SPI, iPS, isp, pis, sip