step-upadj.n.

Etymology: < verbal phrase to step up: see to step up at step v. Phrasal verbs 1.Previous versions of the OED give the stress as: ˈstep-up.

A. adj.

1. Causing or pertaining to an increase in voltage.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > voltage > [adjective] > relating to increase or decrease

step-down1893

step-up1893

the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > transformer > [adjective] > causing increase or decrease

step-down1893

step-up1893

1893 T. O'C. Sloane Standard Electr. Dict. 494 Step-up adj., the reverse of step-down.

1903 C. H. Sewall Wireless Telegr. iv. 149 The transmitter of the DeForest system uses..a step-up transformer to increase the voltage.

1947 R. Lee Electronic Transformers & Circuits v. 142 Input Transformer,..Step-up ratio 1:20.

1947 R. Lee Electronic Transformers & Circuits v. 188 If the transformer is step-up, C₁ = [etc.].

1977 Gramophone Oct. 744/2 A particular criticism levelled towards moving-coil cartridges is that their output is so low as to require a step-up transformer.

2. Furnished with a step to a higher level. Also, of a room with such a feature.

ΘΚΠ

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

society > inhabiting and dwelling > inhabited place > a building > parts of building > stairs > [adjective] > having stairs or steps

staircased1909

step-up1958

society > inhabiting and dwelling > inhabited place > a building > parts of building > room > types of room generally > [adjective] > others

lightsome1548

thorough-lighted1624

prospectless1656

nude1867

boudoiresque1880

step-up1979

1958 J. Myerscough Procession of Lancs. Martyrs & Confessors xix. 260 A typical example of the ‘step-up’ chapel provided for Catholics in the days of persecution may be seen..in Alston Lane, Grimsargh.

1979 Arizona Daily Star 5 Aug. (Advt. section) 13/1 2 bdrms., 2 full baths, step-up dining area.

B. n.

1. An increase in rate or quantity; an intensification.

ΘΚΠ

the world > relative properties > quantity > increase in quantity, amount, or degree > [noun] > an increase

eke894

increasec1384

eking1393

augmentationc1452

superexcrescence1479

access1548

accrue1548

accession1551

increasement1561

ekementa1603

afflux1603

accruement1607

increment1631

rise1654

plusa1721

raise1729

swell1768

gain1851

step-up1922

upcurve1928

build-up1943

1922 R. Glazebrook Dict. Appl. Physics II. 889/1 The amplifying action of a valve is usually more a question of potential step-up than of ratio of power output to power input.

1944 Times 26 May 2/1 We should probably finish the war with very nearly the same step-up in engine power over the present war period as occurred between 1914–18.

1972 Newsweek 10 Jan. 14/3 Coupled with the increasingly hard line adopted by both negotiating teams in recent weeks, the step-up in the air war might even jeopardize the continuation of the talks themselves.

2. Chiefly plural. A step taken on to a platform (such as a bench, etc.) and back again, repeated as a fitness exercise.

ΘΚΠ

society > leisure > sport > types of sport or game > gymnastics > exercise > [noun] > specific exercises

breathing1605

breather1802

arm swing1859

setting-up drill1862

grasshopper march1884

lunge1889

push-up1897

sit-up1900

pull-up1901

deep-breathing1904

bag-punching1927

press-up1928

setting-up exercise1935

pullover1936

bear crawl1937

burpee1939

knee-bend1941

leg raise1944

dip1945

uddiyana1949

squat thrust1950

lateral1954

pull-down1956

aquacise1968

step-up1973

abdominal crunch1981

power walking1982

crunch1983

gut-buster1983

stomach crunch1986

1973 Observer 7 Oct. 28/1 A middle-aged actor keeping his paunch at bay with weights and interminable step-ups.

1978 Whig-Standard (Kingston, Ont.) 15 July 15/2 Stations 5–9 include such exercises as..chin-ups and step-ups.

This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021).

单词	step-up
释义	step-upadj.n. Etymology: < verbal phrase to step up: see to step up at step v. Phrasal verbs 1.Previous versions of the OED give the stress as: ˈstep-up. A. adj. 1. Causing or pertaining to an increase in voltage. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > voltage > [adjective] > relating to increase or decrease step-down1893 step-up1893 the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > transformer > [adjective] > causing increase or decrease step-down1893 step-up1893 1893 T. O'C. Sloane Standard Electr. Dict. 494 Step-up adj., the reverse of step-down. 1903 C. H. Sewall Wireless Telegr. iv. 149 The transmitter of the DeForest system uses..a step-up transformer to increase the voltage. 1947 R. Lee Electronic Transformers & Circuits v. 142 Input Transformer,..Step-up ratio 1:20. 1947 R. Lee Electronic Transformers & Circuits v. 188 If the transformer is step-up, C₁ = [etc.]. 1977 Gramophone Oct. 744/2 A particular criticism levelled towards moving-coil cartridges is that their output is so low as to require a step-up transformer. 2. Furnished with a step to a higher level. Also, of a room with such a feature. ΘΚΠ 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 society > inhabiting and dwelling > inhabited place > a building > parts of building > stairs > [adjective] > having stairs or steps staircased1909 step-up1958 society > inhabiting and dwelling > inhabited place > a building > parts of building > room > types of room generally > [adjective] > others lightsome1548 thorough-lighted1624 prospectless1656 nude1867 boudoiresque1880 step-up1979 1958 J. Myerscough Procession of Lancs. Martyrs & Confessors xix. 260 A typical example of the ‘step-up’ chapel provided for Catholics in the days of persecution may be seen..in Alston Lane, Grimsargh. 1979 Arizona Daily Star 5 Aug. (Advt. section) 13/1 2 bdrms., 2 full baths, step-up dining area. B. n. 1. An increase in rate or quantity; an intensification. ΘΚΠ the world > relative properties > quantity > increase in quantity, amount, or degree > [noun] > an increase eke894 increasec1384 eking1393 augmentationc1452 superexcrescence1479 access1548 accrue1548 accession1551 increasement1561 ekementa1603 afflux1603 accruement1607 increment1631 rise1654 plusa1721 raise1729 swell1768 gain1851 step-up1922 upcurve1928 build-up1943 1922 R. Glazebrook Dict. Appl. Physics II. 889/1 The amplifying action of a valve is usually more a question of potential step-up than of ratio of power output to power input. 1944 Times 26 May 2/1 We should probably finish the war with very nearly the same step-up in engine power over the present war period as occurred between 1914–18. 1972 Newsweek 10 Jan. 14/3 Coupled with the increasingly hard line adopted by both negotiating teams in recent weeks, the step-up in the air war might even jeopardize the continuation of the talks themselves. 2. Chiefly plural. A step taken on to a platform (such as a bench, etc.) and back again, repeated as a fitness exercise. ΘΚΠ society > leisure > sport > types of sport or game > gymnastics > exercise > [noun] > specific exercises breathing1605 breather1802 arm swing1859 setting-up drill1862 grasshopper march1884 lunge1889 push-up1897 sit-up1900 pull-up1901 deep-breathing1904 bag-punching1927 press-up1928 setting-up exercise1935 pullover1936 bear crawl1937 burpee1939 knee-bend1941 leg raise1944 dip1945 uddiyana1949 squat thrust1950 lateral1954 pull-down1956 aquacise1968 step-up1973 abdominal crunch1981 power walking1982 crunch1983 gut-buster1983 stomach crunch1986 1973 Observer 7 Oct. 28/1 A middle-aged actor keeping his paunch at bay with weights and interminable step-ups. 1978 Whig-Standard (Kingston, Ont.) 15 July 15/2 Stations 5–9 include such exercises as..chin-ups and step-ups. This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021). > as lemmas step-up C2. Combinations with an adverb, as step-back, step-down, step-up = an act of stepping backwards, etc. ΚΠ 1603 J. Florio tr. M. de Montaigne Ess. iii. xiii. 658 I begin to perceive a dimnes and weaknes in reading... Loe—heere a steppe-backe, and that very sensible. 1833 Regulations Instr. Cavalry i. i. 18 The ‘Step Back’ is performed in the slow time and length of pace, from the halt. extracted from stepn.¹ < adj.n.1893 as lemmas
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step-upadj.n.

> as lemmas