† aan.¹

Origin: A borrowing from early Scandinavian.

Etymology: < early Scandinavian (compare Old Icelandic á , Old Swedish a , aa (Swedish å ), Old Danish ā (Danish å )), cognate with Old English ēa ea n.Attested earlier as a place-name element, compare e.g. Abi, Lincolnshire (1086; now Aby), Atun, North Riding, Yorkshire (1086; now West Ayton), Braitha (river name), Lancashire and Westmorland (a1163, now Brathay).

Obsolete. rare.

A stream, a watercourse.

ΘΚΠ

the world > the earth > water > rivers and streams > stream > [noun] > watercourse or channel

runeOE

sitchOE

pipeOE

sichetc1133

guttera1300

siket1300

sikec1330

watergate1368

gole?a1400

gotea1400

flout14..

aa1430

trough1513

guta1552

race1570

lode1572

canala1576

ditch1589

trink1592

leam1601

dike1616

runlet1630

stell1651

nullah1656

course1665

drain1700

lade1706

droke1772

regimen1797

draught1807

adit1808

sluit1818

thalweg1831

runway1874

1430 Lease (Archives Magdalen Coll., Oxf.: Saltfleetby 7A) Communis sewere vocat' le Seventowne Aa [in Lincolnshire].

1434 Bolingbroke Court Roll (P.R.O.: DL 30/91/1231) m. 5 Portus de Waynflete [i.e. Wainfleet Haven, Lincolnshire] est defectus in reparactione..le aa de Waynflete est defectus in reparacione a ponte ibidem vsque ecclesiam Omnium sanctorum vsque le dam.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online June 2018).

aan.²

Brit.

/ˈɑːˌɑː/, U.S.

/ˈɑˌɑ/

Forms: 1800s a-a, 1800s– aa, 1900s– a'a.

Origin: A borrowing from Hawaiian. Etymon: Hawaiian ʽa-ʽā.

Etymology: < Hawaiian ʽa-ʽā to burn, (as noun) fire, lava, (as adjective) abounding with aa lava. Compare earlier pahoehoe n.

Geology.

A kind of volcanic lava with a rough, jagged surface covered with loose clinkers. Frequently attributive, esp. in aa lava. Contrasted with pahoehoe.Early quots. refer specifically to lava in Hawaii.

ΘΚΠ

the world > the earth > structure of the earth > structural features > volcanic formations > [noun] > lava formations > others

pahoehoe1825

malpais1844

spatter rampart1856

ring wall1858

aa1859

pedregal1881

pillow structure1897

pillow1899

pillow lava1903

block lava1914

ring dyke1915

louderback1930

1859 Amer. Jrnl. Sci. 78 70 We..saw ‘pahoihoi’ or solid lava forming, and also ‘aa’ or clinkers.

1868 Eclectic Mag. Aug. 972/2 What makes the difference between the dry aa lava and the liquid pahoehoe..is an interesting subject.

1880 Encycl. Brit. XI. 531/2 The a-a or spongy lava, which, on account of its extreme roughness and hardness, is carefully avoided by all travellers.

1890 J. D. Dana Characteristics Volcanoes 10 Lava of the aa kind occurs at Vesuvius.

1914 R. A. Daly Igneous Rocks & their Origin xiii. 291 The vesiculation of pahoehoe or ropy lava was found to be more evenly developed than in the aa or block lava.

1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) v. 91 At central volcanic cones, two other varieties are distinguished, the aa flow, which breaks up at its advancing front into blocks of scoria, and the pahoehoe, which flows with a ropy surface.

1974 J. Brennan Parker Ranch of Hawaii (1979) v. 53 They had to run over a'a (jagged lava, pronounced ah-ah) that could cut the average horse's feet to ribbons.

2003 National Geographic Jan. 44 (caption) A serpentine flow barely six inches wide and 50 feet long meanders through formations of smooth pahoehoe lava and rough aa lava.

2005 A. Burdick Out of Eden (2006) xiii. 163 The footing was sharp and uneven, the signature of an old a'a flow.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021).

> as lemmas

AA n. chiefly U.S. Politics administrative assistant.

ΚΠ

1957 Newsweek 28 Jan. 34/1 A.A.'s make up ‘quotes’ for inquiring reporters and whisper strategic advice during floor debates.

1989 D. W. Ewing Justice on Job 149 The AA would write up the complaint when it came to the office and set the wheels in motion for a thorough investigation.

2002 G. Reeher & M. Mariani Insider's Guide to Polit. Internships 32 The AA is responsible for all the office's operations and serves as a top advisor to the member on both policy and political issues.

AA n. originally U.S. Alcoholics Anonymous; (also) a member of this organization.

ΘΚΠ

the world > food and drink > drink > thirst > excess in drinking > [noun] > addiction to alcohol or habitual drinking > society for rehabilitation or support of

Alcoholics Anonymous1939

AA1940

Al-Anon1952

Alateen1958

the world > food and drink > drink > thirst > excess in drinking > [noun] > addiction to alcohol or habitual drinking > society for rehabilitation or support of > member of

AA1940

1940 Washington Star 5 May ii. c5/4 Attention was drawn to the movement recently by a dinner that John D. Rockefeller, jr..gave for 60 A.A.'s at the Union Club in New York.

1943 A.A. (Alcoholic Foundation) 1 As an active member of A.A. since 1939, I feel myself a useful member of the human race at last.

1977 M. French Women's Room ii. x. 89 I keep thinking I just have to get through today, you know? Like an AA.

2008 Daily Record (Nexis) 23 July 32 I am an alcoholic but, with the help of AA and friends, I have not had a drink for four years.

AA adj. (also A-A, A/A) anti-aircraft; cf. ack-ack adj.The abbreviation occurs in a work ostensibly dated 1909, E. Hospitalier Vocabulaire Technique, Industriel & Commercial (new ed.) 538, but this title-page date is thought to be an error for 1919.

ΘΚΠ

society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > piece of artillery > [adjective] > anti-aircraft

anti-aircraft1911

AA1914

ack-ack1916

1914 Times Bk. Navy 145 The abbreviations used in the lists are as follows:..A.A., Anti-air-craft guns.

1943 Notes & Queries 184 107/2 A.-A. barrage was audible from twenty miles away.

1978 MERIP Rep. No. 64 23/1 (table) Self-propelled A/A guns.

a1985 P. White With the Jocks (2003) 29 As the gun had AA mounting and sights it was difficult to keep the rapid bursts of fire consistently on target.

A.A. n. North American Education Associate of (also in) Arts.

ΚΠ

1857 Photogr. Notes 15 Dec. 464/1 Young men, whose age does not exceed 18 years, may, by successfully passing an examination in two or more..subjects,..receive the degree of A.A. (Associate of Arts).

1952 Good Housek. (U.S. ed.) Dec. 201/1 (advt.) Fully accredited. Awards A.A. degree. College transfer, terminal, and pre-professional courses.

2001 J. E. Rosenbaum Beyond College for All iii. 66 The A.A. is a shorter and perhaps easier degree than a B.A.

AA n. Automobile Association.

ΘΚΠ

society > travel > transport > transport or conveyance in a vehicle > driving or operating a vehicle > driver or operator of vehicle > [noun] > driver of motor vehicle > motoring associations

AAA1902

AA1905

RAC1906

1905 Autocar 14 Oct. 443/1 Commonsense precautions taken with regard to villages, and at dangerous points, do not concern the A.A., for therein it is considered lies the duty of the policeman.

1937 Discovery July liv/2 (advt.) Victoria Hotel, A.A. H. & C. Electricity.

2009 Evening Gaz. (Middlesbrough) (Nexis) 4 Apr. 11 You contacted the AA for a routemap and the information you received was a loose leaf folder stapled at the top.

c. Reduplicated as AA, AAA, etc., as an extension of an alphabetical sequence (preceding A), esp. denoting one of a series of sizes or classes.

ΚΠ

1877 J. T. Fanning Pract. Treat. Water Supply Engin. 608 Lead pipes of weights as in class A are used ordinarily when the head of water on them does not exceed 75 feet; class AA when the head is from 75 to 150 feet ; and class AAA when the head..is great.

1893 J. M. Crawford tr. Industries of Russia I. iii. 45 The manufactory produced..twist, weft and doubled yarns, class AAA, class AA and classes A, B and C.

1915 Spalding's Official Base Ball Rec. 8 7 Both National and American Leagues agreed that players drafted from Class AA clubs should finish the season.

1952 Good Housek. (U.S. ed.) Dec. 245/2 (advt.) QualiCraft opera highlighted by holiday sparkle Sizes 3 to 10, AAAA through C.

1973 Pop. Mech. Dec. 133 Batteries are penlight size (AA) in some cameras and size AAA in others.

1997 Financial Post (Canada) 13 Feb. 35/4 Dominion Bond Rating Service said it is assigning a rating of AA to British Columbia's 70-billion-yen issue of..Samurai bonds.

2002 Independent 20 June (Review section) 11/4 A company that caters to everyone from the most modestly sized (AA cup) to the stonkingly well-endowed (H cup).

单词	aa
释义	† aan.¹ Origin: A borrowing from early Scandinavian. Etymology: < early Scandinavian (compare Old Icelandic á , Old Swedish a , aa (Swedish å ), Old Danish ā (Danish å )), cognate with Old English ēa ea n.Attested earlier as a place-name element, compare e.g. Abi, Lincolnshire (1086; now Aby), Atun, North Riding, Yorkshire (1086; now West Ayton), Braitha (river name), Lancashire and Westmorland (a1163, now Brathay). Obsolete. rare. A stream, a watercourse. ΘΚΠ the world > the earth > water > rivers and streams > stream > [noun] > watercourse or channel runeOE sitchOE pipeOE sichetc1133 guttera1300 siket1300 sikec1330 watergate1368 gole?a1400 gotea1400 flout14.. aa1430 trough1513 guta1552 race1570 lode1572 canala1576 ditch1589 trink1592 leam1601 dike1616 runlet1630 stell1651 nullah1656 course1665 drain1700 lade1706 droke1772 regimen1797 draught1807 adit1808 sluit1818 thalweg1831 runway1874 1430 Lease (Archives Magdalen Coll., Oxf.: Saltfleetby 7A) Communis sewere vocat' le Seventowne Aa [in Lincolnshire]. 1434 Bolingbroke Court Roll (P.R.O.: DL 30/91/1231) m. 5 Portus de Waynflete [i.e. Wainfleet Haven, Lincolnshire] est defectus in reparactione..le aa de Waynflete est defectus in reparacione a ponte ibidem vsque ecclesiam Omnium sanctorum vsque le dam. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online June 2018). aan.² Brit. /ˈɑːˌɑː/, U.S. /ˈɑˌɑ/ Forms: 1800s a-a, 1800s– aa, 1900s– a'a. Origin: A borrowing from Hawaiian. Etymon: Hawaiian ʽa-ʽā. Etymology: < Hawaiian ʽa-ʽā to burn, (as noun) fire, lava, (as adjective) abounding with aa lava. Compare earlier pahoehoe n. Geology. A kind of volcanic lava with a rough, jagged surface covered with loose clinkers. Frequently attributive, esp. in aa lava. Contrasted with pahoehoe.Early quots. refer specifically to lava in Hawaii. ΘΚΠ the world > the earth > structure of the earth > structural features > volcanic formations > [noun] > lava formations > others pahoehoe1825 malpais1844 spatter rampart1856 ring wall1858 aa1859 pedregal1881 pillow structure1897 pillow1899 pillow lava1903 block lava1914 ring dyke1915 louderback1930 1859 Amer. Jrnl. Sci. 78 70 We..saw ‘pahoihoi’ or solid lava forming, and also ‘aa’ or clinkers. 1868 Eclectic Mag. Aug. 972/2 What makes the difference between the dry aa lava and the liquid pahoehoe..is an interesting subject. 1880 Encycl. Brit. XI. 531/2 The a-a or spongy lava, which, on account of its extreme roughness and hardness, is carefully avoided by all travellers. 1890 J. D. Dana Characteristics Volcanoes 10 Lava of the aa kind occurs at Vesuvius. 1914 R. A. Daly Igneous Rocks & their Origin xiii. 291 The vesiculation of pahoehoe or ropy lava was found to be more evenly developed than in the aa or block lava. 1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) v. 91 At central volcanic cones, two other varieties are distinguished, the aa flow, which breaks up at its advancing front into blocks of scoria, and the pahoehoe, which flows with a ropy surface. 1974 J. Brennan Parker Ranch of Hawaii (1979) v. 53 They had to run over a'a (jagged lava, pronounced ah-ah) that could cut the average horse's feet to ribbons. 2003 National Geographic Jan. 44 (caption) A serpentine flow barely six inches wide and 50 feet long meanders through formations of smooth pahoehoe lava and rough aa lava. 2005 A. Burdick Out of Eden (2006) xiii. 163 The footing was sharp and uneven, the signature of an old a'a flow. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021). > as lemmas AA AA n. chiefly U.S. Politics administrative assistant. ΚΠ 1957 Newsweek 28 Jan. 34/1 A.A.'s make up ‘quotes’ for inquiring reporters and whisper strategic advice during floor debates. 1989 D. W. Ewing Justice on Job 149 The AA would write up the complaint when it came to the office and set the wheels in motion for a thorough investigation. 2002 G. Reeher & M. Mariani Insider's Guide to Polit. Internships 32 The AA is responsible for all the office's operations and serves as a top advisor to the member on both policy and political issues. extracted from An. AA AA n. originally U.S. Alcoholics Anonymous; (also) a member of this organization. ΘΚΠ the world > food and drink > drink > thirst > excess in drinking > [noun] > addiction to alcohol or habitual drinking > society for rehabilitation or support of Alcoholics Anonymous1939 AA1940 Al-Anon1952 Alateen1958 the world > food and drink > drink > thirst > excess in drinking > [noun] > addiction to alcohol or habitual drinking > society for rehabilitation or support of > member of AA1940 1940 Washington Star 5 May ii. c5/4 Attention was drawn to the movement recently by a dinner that John D. Rockefeller, jr..gave for 60 A.A.'s at the Union Club in New York. 1943 A.A. (Alcoholic Foundation) 1 As an active member of A.A. since 1939, I feel myself a useful member of the human race at last. 1977 M. French Women's Room ii. x. 89 I keep thinking I just have to get through today, you know? Like an AA. 2008 Daily Record (Nexis) 23 July 32 I am an alcoholic but, with the help of AA and friends, I have not had a drink for four years. extracted from An. AA AA adj. (also A-A, A/A) anti-aircraft; cf. ack-ack adj.The abbreviation occurs in a work ostensibly dated 1909, E. Hospitalier Vocabulaire Technique, Industriel & Commercial (new ed.) 538, but this title-page date is thought to be an error for 1919. ΘΚΠ society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > piece of artillery > [adjective] > anti-aircraft anti-aircraft1911 AA1914 ack-ack1916 1914 Times Bk. Navy 145 The abbreviations used in the lists are as follows:..A.A., Anti-air-craft guns. 1943 Notes & Queries 184 107/2 A.-A. barrage was audible from twenty miles away. 1978 MERIP Rep. No. 64 23/1 (table) Self-propelled A/A guns. a1985 P. White With the Jocks (2003) 29 As the gun had AA mounting and sights it was difficult to keep the rapid bursts of fire consistently on target. extracted from An. A.A. A.A. n. North American Education Associate of (also in) Arts. ΚΠ 1857 Photogr. Notes 15 Dec. 464/1 Young men, whose age does not exceed 18 years, may, by successfully passing an examination in two or more..subjects,..receive the degree of A.A. (Associate of Arts). 1952 Good Housek. (U.S. ed.) Dec. 201/1 (advt.) Fully accredited. Awards A.A. degree. College transfer, terminal, and pre-professional courses. 2001 J. E. Rosenbaum Beyond College for All iii. 66 The A.A. is a shorter and perhaps easier degree than a B.A. extracted from An. AA AA n. Automobile Association. ΘΚΠ society > travel > transport > transport or conveyance in a vehicle > driving or operating a vehicle > driver or operator of vehicle > [noun] > driver of motor vehicle > motoring associations AAA1902 AA1905 RAC1906 1905 Autocar 14 Oct. 443/1 Commonsense precautions taken with regard to villages, and at dangerous points, do not concern the A.A., for therein it is considered lies the duty of the policeman. 1937 Discovery July liv/2 (advt.) Victoria Hotel, A.A. H. & C. Electricity. 2009 Evening Gaz. (Middlesbrough) (Nexis) 4 Apr. 11 You contacted the AA for a routemap and the information you received was a loose leaf folder stapled at the top. extracted from An. AA c. Reduplicated as AA, AAA, etc., as an extension of an alphabetical sequence (preceding A), esp. denoting one of a series of sizes or classes. ΚΠ 1877 J. T. Fanning Pract. Treat. Water Supply Engin. 608 Lead pipes of weights as in class A are used ordinarily when the head of water on them does not exceed 75 feet; class AA when the head is from 75 to 150 feet ; and class AAA when the head..is great. 1893 J. M. Crawford tr. Industries of Russia I. iii. 45 The manufactory produced..twist, weft and doubled yarns, class AAA, class AA and classes A, B and C. 1915 Spalding's Official Base Ball Rec. 8 7 Both National and American Leagues agreed that players drafted from Class AA clubs should finish the season. 1952 Good Housek. (U.S. ed.) Dec. 245/2 (advt.) QualiCraft opera highlighted by holiday sparkle Sizes 3 to 10, AAAA through C. 1973 Pop. Mech. Dec. 133 Batteries are penlight size (AA) in some cameras and size AAA in others. 1997 Financial Post (Canada) 13 Feb. 35/4 Dominion Bond Rating Service said it is assigning a rating of AA to British Columbia's 70-billion-yen issue of..Samurai bonds. 2002 Independent 20 June (Review section) 11/4 A company that caters to everyone from the most modestly sized (AA cup) to the stonkingly well-endowed (H cup). extracted from An. < n.¹1430n.²1859 as lemmas
随便看	gentilitian gentilities gentilitious gentility gentilization gentilize gentilize it gentilized gentilizes gentilizing gentiness gentiobiose gentiopicrin gentisate gentish gentishness gentisic gentisic acid gentisin gentism gentle gentle and simple gentle and small gentle annie gentle as a lamb

† aan.1

aan.2

> as lemmas

† aan.¹

aan.²