coaxialadj.

Brit.

/kəʊˈaksɪəl/, U.S.

/koʊˈæksiəl/

Etymology: < co- prefix + axis n.¹ + -al suffix¹; compare axal adj.

Categories »

1. Mathematics. Having a common axis.

a. Various technical uses.

ΘΚΠ

the world > relative properties > number > geometry > geometric space > [adjective] > having specific axes

biaxial1889

triaxal1891

coaxial1904

triaxial1924

the world > space > relative position > central condition or position > [adjective] > situated in the centre or middle > situated on the axis > having a common axis

coaxal1879

coaxial1904

1904 A. Russell Treat. Theory Alternating Currents iv. 95 The equipotential surfaces between the two cylinders are coaxial cylinders no matter how small a may be.

1914 A. Russell Treat. Theory Alternating Currents (ed. 2) iii. 108 (heading) The mutual induction of two coaxial coils.

1921 Jrnl. Franklin Inst. 191 707 The problem of transmission over a system consisting of n coaxial cylindrical conductors, which may be either in electrical contact at their adjacent surfaces or separated from each other by dielectric spaces.

1934 Electr. Comm. XII. 161/2 The diameters of these coaxial conductors were so chosen as to obtain for each of the two transmission paths a diameter ratio which approximates the optimum value.

1940 Chambers's Techn. Dict. 172/1 Co-axial carbons, carbons in an arc lamp so arranged as to be in the same straight line with each other.

1951 Gloss. Terms Plastics (B.S.I.) 40 co-axial feeder, a type of cable for the transmission of radio frequency power consisting of concentric inner and outer conductors insulated from one another.

1958 Chambers's Techn. Dict. 967/1 Coaxial filter, one in which a section of coaxial line is fitted with re-entrant elements to provide the inductance and capacitance of a filter section.

1958 Newnes Compl. Amateur Photogr. 111 Modern cameras are fitted with flash contacts in the form of a two pin plug or co-axial socket on the shutter.

1964 Gloss. Letterpress Rotary Print. Terms (B.S.I.) 28 Co-axial drive, a system of press drive whereby a number of smaller powered motors drive the press units by means of suitable couplings on a common shaft.

b. spec. Of an airscrew or propeller: mounted on concentric shafts.

ΘΚΠ

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > means of propulsion > [adjective] > types of propeller

feathering1909

reversible-pitch1919

adjustable pitch1934

coaxial1934

1934 Engineering 3 Aug. 126/2 Coaxial contrary-turning screws... The same disposition of screws had been successfully employed on an Italian flying boat.

1936 Jrnl. Royal Aeronaut. Soc. 40 221 Co-axial airscrews, one immediately behind the other (say on a single central engine), turning in opposite directions.

1946 Aeroplane Spotter 13 July 162/2 Powered by two 2,080 h.p. Rolls-Royce Merlin 140 motors, each driving two Rotol three-blade, co-axial, counter-rotating airscrews.

1949 Gloss. Aeronaut. Terms (B.S.I.) ii. 19 Coaxial propellers, two propellers mounted on concentric shafts having independent drives and rotating in opposite directions.

c. coaxial cable, a cable containing several coaxial lines and usually also conductors to supply repeaters and other associated equipment; also, a coaxial line; coaxial line, a transmission line made up of two concentric circular conductors separated by an insulating medium, used esp. for medium and high frequency signals in television and multiplex telephony. Also elliptical as n.

ΘΚΠ

society > communication > telecommunication > telegraphy or telephony > [noun] > line

wire1813

line1847

wire line1848

loop1863

landline1865

saddle wire1876

telephone line1877

concentric cable1888

Pupin cable1904

multiple twin1922

quad1922

twisted pair1923

star quad1927

music line1929

coaxial cable1934

coax1945

1934 Electr. Comm. XIII. ii. 159 Frequency bands of the order of 1,000 kc. or more may be transmitted for long distances over coaxial lines and utilised for purposes of multiplex telephony or television. A coaxial line is a metal tube surrounding a central conductor and separated from it by insulating supports.

1935 Electr. Comm. XIII. iv. 351/2 If similar conducting and insulating materials are used, shielded balanced pairs and coaxials have similar transmission-frequency characteristics.

1936 Electr. Comm. XIV. iii. 175/1 The coaxial cable systems where all channels are carried over a single coaxial line.

1938 Times 7 Jan. 14/1 The alternative..is to feed the provinces from London by a special land-line, known as a co-axial cable.

1940 Chambers's Techn. Dict. 172/1 Co-axial cable, a type of cable in which a central conductor is surrounded by an outer tubular conductor... Its low attenuation makes it suitable for the transmission of video-frequency currents in television.

1943 Electronic Engin. 16 64 The distribution of the signal via video frequency local co-axial cable networks.

1955 Sci. Amer. Apr. 48/3 A coaxial cable can handle only 600 phone calls and two TV shows.

1959 Ann. Reg. 1958 521 It was agreed..that a round-the-world Commonwealth coaxial-cable telephone system should be constructed.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) III. 245/2 In a typical cable each coaxial line has an outer conductor with an inside diameter of o·375 in.

Derivatives

coˈaxially adv.

ΘΚΠ

the world > space > relative position > central condition or position > [adverb] > number or type of axes

coaxially1881

triaxially1982

1881 O. Reynolds in Nature 24 Mar. 477/2 Two eddies should face, and so exactly as to be coaxial.

1884 S. P. Thompson Dynamo-electr. Machinery 198 Let a coil be introduced..let a second coil..be laid coaxially with it.

This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2022).

单词	coaxial
释义	coaxialadj. Brit. /kəʊˈaksɪəl/, U.S. /koʊˈæksiəl/ Etymology: < co- prefix + axis n.¹ + -al suffix¹; compare axal adj. Categories » 1. Mathematics. Having a common axis. 2. a. Various technical uses. ΘΚΠ the world > relative properties > number > geometry > geometric space > [adjective] > having specific axes biaxial1889 triaxal1891 coaxial1904 triaxial1924 the world > space > relative position > central condition or position > [adjective] > situated in the centre or middle > situated on the axis > having a common axis coaxal1879 coaxial1904 1904 A. Russell Treat. Theory Alternating Currents iv. 95 The equipotential surfaces between the two cylinders are coaxial cylinders no matter how small a may be. 1914 A. Russell Treat. Theory Alternating Currents (ed. 2) iii. 108 (heading) The mutual induction of two coaxial coils. 1921 Jrnl. Franklin Inst. 191 707 The problem of transmission over a system consisting of n coaxial cylindrical conductors, which may be either in electrical contact at their adjacent surfaces or separated from each other by dielectric spaces. 1934 Electr. Comm. XII. 161/2 The diameters of these coaxial conductors were so chosen as to obtain for each of the two transmission paths a diameter ratio which approximates the optimum value. 1940 Chambers's Techn. Dict. 172/1 Co-axial carbons, carbons in an arc lamp so arranged as to be in the same straight line with each other. 1951 Gloss. Terms Plastics (B.S.I.) 40 co-axial feeder, a type of cable for the transmission of radio frequency power consisting of concentric inner and outer conductors insulated from one another. 1958 Chambers's Techn. Dict. 967/1 Coaxial filter, one in which a section of coaxial line is fitted with re-entrant elements to provide the inductance and capacitance of a filter section. 1958 Newnes Compl. Amateur Photogr. 111 Modern cameras are fitted with flash contacts in the form of a two pin plug or co-axial socket on the shutter. 1964 Gloss. Letterpress Rotary Print. Terms (B.S.I.) 28 Co-axial drive, a system of press drive whereby a number of smaller powered motors drive the press units by means of suitable couplings on a common shaft. b. spec. Of an airscrew or propeller: mounted on concentric shafts. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > means of propulsion > [adjective] > types of propeller feathering1909 reversible-pitch1919 adjustable pitch1934 coaxial1934 1934 Engineering 3 Aug. 126/2 Coaxial contrary-turning screws... The same disposition of screws had been successfully employed on an Italian flying boat. 1936 Jrnl. Royal Aeronaut. Soc. 40 221 Co-axial airscrews, one immediately behind the other (say on a single central engine), turning in opposite directions. 1946 Aeroplane Spotter 13 July 162/2 Powered by two 2,080 h.p. Rolls-Royce Merlin 140 motors, each driving two Rotol three-blade, co-axial, counter-rotating airscrews. 1949 Gloss. Aeronaut. Terms (B.S.I.) ii. 19 Coaxial propellers, two propellers mounted on concentric shafts having independent drives and rotating in opposite directions. c. coaxial cable, a cable containing several coaxial lines and usually also conductors to supply repeaters and other associated equipment; also, a coaxial line; coaxial line, a transmission line made up of two concentric circular conductors separated by an insulating medium, used esp. for medium and high frequency signals in television and multiplex telephony. Also elliptical as n. ΘΚΠ society > communication > telecommunication > telegraphy or telephony > [noun] > line wire1813 line1847 wire line1848 loop1863 landline1865 saddle wire1876 telephone line1877 concentric cable1888 Pupin cable1904 multiple twin1922 quad1922 twisted pair1923 star quad1927 music line1929 coaxial cable1934 coax1945 1934 Electr. Comm. XIII. ii. 159 Frequency bands of the order of 1,000 kc. or more may be transmitted for long distances over coaxial lines and utilised for purposes of multiplex telephony or television. A coaxial line is a metal tube surrounding a central conductor and separated from it by insulating supports. 1935 Electr. Comm. XIII. iv. 351/2 If similar conducting and insulating materials are used, shielded balanced pairs and coaxials have similar transmission-frequency characteristics. 1936 Electr. Comm. XIV. iii. 175/1 The coaxial cable systems where all channels are carried over a single coaxial line. 1938 Times 7 Jan. 14/1 The alternative..is to feed the provinces from London by a special land-line, known as a co-axial cable. 1940 Chambers's Techn. Dict. 172/1 Co-axial cable, a type of cable in which a central conductor is surrounded by an outer tubular conductor... Its low attenuation makes it suitable for the transmission of video-frequency currents in television. 1943 Electronic Engin. 16 64 The distribution of the signal via video frequency local co-axial cable networks. 1955 Sci. Amer. Apr. 48/3 A coaxial cable can handle only 600 phone calls and two TV shows. 1959 Ann. Reg. 1958 521 It was agreed..that a round-the-world Commonwealth coaxial-cable telephone system should be constructed. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) III. 245/2 In a typical cable each coaxial line has an outer conductor with an inside diameter of o·375 in. Derivatives coˈaxially adv. ΘΚΠ the world > space > relative position > central condition or position > [adverb] > number or type of axes coaxially1881 triaxially1982 1881 O. Reynolds in Nature 24 Mar. 477/2 Two eddies should face, and so exactly as to be coaxial. 1884 S. P. Thompson Dynamo-electr. Machinery 198 Let a coil be introduced..let a second coil..be laid coaxially with it. This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2022). < adj.1881
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