half-duplexadj.n.

Brit.

/ˌhɑːfˈdjuːplɛks/,

/ˌhɑːfˈdʒuːplɛks/, U.S.

/ˌhæfˈd(j)uˌplɛks/

Origin: Formed within English, by compounding. Etymons: half adv., duplex adj.; half adj., duplex n.

Etymology: Partly (as adjective) < half adv. + duplex adj., and partly (as noun) < half adj. + duplex n.

A. adj.

†1. Designating a type of air or steam compressor used chiefly in mines and designed to work either as a stand-alone machine, or (more commonly) as one of a duplex. Obsolete.In the latter case, the two compressors have slightly different functions, such as compressing air to different pressures, or one compressor compressing steam and the other air.

1895 Engin. & Mining Jrnl. 2 Feb. 102/2 The engine room..contains the engine, mill pump, fire pump and air compressor (a half-duplex 14 X 42 Corliss).

1914 Daily Consular & Trade Rep. 1107 Air [in the mine] is supplied by a Canadian-Rand cross-compound Corliss compressor..and one half-duplex Allis-Chalmers-Bullock air compressor, class G.

2. Originally and chiefly North American. Designating either of the two separate residences that are part of a duplex building.Frequently in the language of real estate agents.

ΘΠ

society > inhabiting and dwelling > inhabited place > a building > building of specific internal arrangement > [adjective]

roomed1596

storeyed1607

wide-roomed1860

staged1884

walkthrough1920

shotgun1938

split-level1952

open plan1954

step-up1958

raised ranch1960

landscaped1968

open-concept1978

1906 Sunday Jrnl. (Minneapolis, Minnesota) 8 July (Classified section) 5/5 Wanted to rent—about eight-room house or half-duplex house.

1980 Winchester (Va.) Star 7 Aug. (Real Estate section) 18/6 5 room, half duplex apartment for rent... Excellent condition. Ideal location.

2021 @BassanoJeff 16 Sept. in twitter.com (accessed 7 July 2022) I was going to rent a ladder..to go on top of my two-storey half-duplex home to clean my gutters this weekend.

3. Telecommunications and Computing. Of a device or system: allowing the transmission of signals in only one direction at a time; of or relating to such transmission. Also of a signal: transmitted by such a system.

1913 Telephony 23 Aug. 41/2 This combination of duplex set and single line repeater is not as simple as a duplex or half-duplex repeater.

1962 Final Rep. Tiros I Meteorological Satellite Syst. (NASA Techn. Rep. R-131) i. 62/1 A half-duplex teletype circuit was connected directly to the U.S. Weather Bureau's Meteorological Satellite Laboratory.

1995 Byte May 114/2 Conventional LANs fall short in being able to deliver continuous data streams because they use half-duplex protocols, which are designed for the bursty traffic patterns intended for transmitting text and numerical data.

2020 Star Tribune (Nexis) 21 Apr. d4 Other services, such as Skype, support only half-duplex sound, so only one person can talk at a time.

B. n.

Originally and chiefly North American. Either of the two separate residences that are part of a duplex building.Frequently in the language of real estate agents.

ΘΠ

society > inhabiting and dwelling > inhabited place > a building > building of specific internal arrangement > [noun]

pseudodipter1692

pseudodipteron1706

catacomb1884

warren1922

three-decker1942

shotgun1945

triplex1962

bi-level1965

1928 Amarillo (Texas) Daily News 6 Jan. (Classified section) 12/4 For rent—unfurnished half duplex; $25.

1990 Snow Country June 41/1 For the most part, these communities consist of single-family homes and half-duplexes, though some areas also offer condominiums and townhomes.

2016 Edmonton (Alberta) Metro 25 Feb. (Metro Home section) 19/1 Spacious half-duplexes with developed basements offer downsizers all the comforts of a larger home with the benefits of maintenance-free condo living.

This is a new entry (OED Third Edition, December 2022).

单词	half-duplex
释义	half-duplexadj.n. Brit. /ˌhɑːfˈdjuːplɛks/, /ˌhɑːfˈdʒuːplɛks/, U.S. /ˌhæfˈd(j)uˌplɛks/ Origin: Formed within English, by compounding. Etymons: half adv., duplex adj.; half adj., duplex n. Etymology: Partly (as adjective) < half adv. + duplex adj., and partly (as noun) < half adj. + duplex n. A. adj. †1. Designating a type of air or steam compressor used chiefly in mines and designed to work either as a stand-alone machine, or (more commonly) as one of a duplex. Obsolete.In the latter case, the two compressors have slightly different functions, such as compressing air to different pressures, or one compressor compressing steam and the other air. Π 1895 Engin. & Mining Jrnl. 2 Feb. 102/2 The engine room..contains the engine, mill pump, fire pump and air compressor (a half-duplex 14 X 42 Corliss). 1914 Daily Consular & Trade Rep. 1107 Air [in the mine] is supplied by a Canadian-Rand cross-compound Corliss compressor..and one half-duplex Allis-Chalmers-Bullock air compressor, class G. 2. Originally and chiefly North American. Designating either of the two separate residences that are part of a duplex building.Frequently in the language of real estate agents. ΘΠ society > inhabiting and dwelling > inhabited place > a building > building of specific internal arrangement > [adjective] roomed1596 storeyed1607 wide-roomed1860 staged1884 walkthrough1920 shotgun1938 split-level1952 open plan1954 step-up1958 raised ranch1960 landscaped1968 open-concept1978 1906 Sunday Jrnl. (Minneapolis, Minnesota) 8 July (Classified section) 5/5 Wanted to rent—about eight-room house or half-duplex house. 1980 Winchester (Va.) Star 7 Aug. (Real Estate section) 18/6 5 room, half duplex apartment for rent... Excellent condition. Ideal location. 2021 @BassanoJeff 16 Sept. in twitter.com (accessed 7 July 2022) I was going to rent a ladder..to go on top of my two-storey half-duplex home to clean my gutters this weekend. 3. Telecommunications and Computing. Of a device or system: allowing the transmission of signals in only one direction at a time; of or relating to such transmission. Also of a signal: transmitted by such a system. Π 1913 Telephony 23 Aug. 41/2 This combination of duplex set and single line repeater is not as simple as a duplex or half-duplex repeater. 1962 Final Rep. Tiros I Meteorological Satellite Syst. (NASA Techn. Rep. R-131) i. 62/1 A half-duplex teletype circuit was connected directly to the U.S. Weather Bureau's Meteorological Satellite Laboratory. 1995 Byte May 114/2 Conventional LANs fall short in being able to deliver continuous data streams because they use half-duplex protocols, which are designed for the bursty traffic patterns intended for transmitting text and numerical data. 2020 Star Tribune (Nexis) 21 Apr. d4 Other services, such as Skype, support only half-duplex sound, so only one person can talk at a time. B. n. Originally and chiefly North American. Either of the two separate residences that are part of a duplex building.Frequently in the language of real estate agents. ΘΠ society > inhabiting and dwelling > inhabited place > a building > building of specific internal arrangement > [noun] pseudodipter1692 pseudodipteron1706 catacomb1884 warren1922 three-decker1942 shotgun1945 triplex1962 bi-level1965 1928 Amarillo (Texas) Daily News 6 Jan. (Classified section) 12/4 For rent—unfurnished half duplex; $25. 1990 Snow Country June 41/1 For the most part, these communities consist of single-family homes and half-duplexes, though some areas also offer condominiums and townhomes. 2016 Edmonton (Alberta) Metro 25 Feb. (Metro Home section) 19/1 Spacious half-duplexes with developed basements offer downsizers all the comforts of a larger home with the benefits of maintenance-free condo living. This is a new entry (OED Third Edition, December 2022). < adj.n.1895
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