Emuとは 意味・読み方・使い方

別の表記

• emeu (obsolete)

語源 1

Probably from Portuguese ema (“(originally) cassowary; giant rhea; (now) ostrich”).

発音

• (Received Pronunciation) IPA: /ˈiːmjuː/
• (General American) IPA: /ˈim(j)u/
• 韻: -iːmjuː

名詞

emu (plural emus)

1. A large flightless bird native to Australia, Dromaius novaehollandiae. [from 18th c.]
   • 1791, Oliver Goldsmith, An History of the Earth, and Animated Nature. […], new edition, volume V, London: […] F[rancis] Wingrave, successor to Mr. [John] Nourse, […], →OCLC, part I (An History of Birds), pages 59 and 60:

     [page 59] The Emu, though not ſo as large as the oſtrich, is only ſecond to it in magnitude. It is by much the largeſt bird in the New Continent; and is generally found to be ſix feet high, meaſuring from its head to the ground. […] [page 60] [T]he emu runs with ſuch a ſwiftneſs, that the fleeteſt dogs are thrown out in the purſuit.

   • 1829, “The Progress of Zoology”, in T[homas] Crofton Croker, editor, The Christmas Box. An Annual Present to Young Persons, London: John Ebers and Co. 27 Old Bond Street; Philadelphia, Pa.: Thomas Wardle, →OCLC, page 176:

     From New Holland the emeu, / With his better moiety, / Has paid a visit to the Zo- / ological Society.

   • 1864 June 4, William Bennett, “Acclimation and Breeding of Emeus (Dromius irroratus, Bartlett) in Surrey”, in Edward Newman, editor, The Zoologist: A Popular Miscellany of Natural History, volume XXII, London: John Van Voorst, […], →OCLC, chapter II:

     I left my young emeus […] just parted from their affectionate father, and not yet fully reconciled to beginning the world on their own account.

   • 1873, Anthony Trollope, “Wool”, in Australia and New Zealand. [...] In Two Volumes, volume II, London: Chapman and Hall, […], →OCLC, pages 219–220:

     A stranger cannot but remark, throughout the pastoral districts of Australia, how seldom he sees sheep as he travels along. […] It may be that he will also expect emus and kangaroos, and he will generally be disappointed also in regard to them. Kangaroos I certainly have seen in great numbers, though by no means so often as I expected. An emu running wild I never did see. Tame emus round the houses in towns are very common, and of emus’ eggs there is a plethora.

   • 2015, Sankar Chatterjee, “The Avian Revolution Begins”, in The Rise of Birds: 225 Million Years of Evolution, 2nd edition, Baltimore, Md.: Johns Hopkins University Press, →ISBN, page 191:

     Both cassowaries and emus are large, flightless, cursorial birds with diminutive wings. […] Emus, the world's second largest living birds, live in Australia and are the only extant member of the genus Dromaius.

2. (obsolete) A cassowary (genus Casuarius). [from early 17th c.]
   • 1656, John Tradescant [the elder], “Some Kindes of Birds Their Egges, Beaks, Feathers, Clawes, and Spurres”, in Musæum Tradescantianum: Or, A Collection of Rarities. Preserved at South-Lambeth neer London by John Tradescant, London: Printed by John Grismond, and are to be sold by Nathanael Brooke […], →OCLC, pages 1 and 3:

     [page 1] 1. EGGES. Caſſawary, or Emeu, vide Aldrov: p. 542. Harveum, G.A. p. 61. […] [page 3] 4. CLAWES. […] A legge and claw of the Caſſawary or Emeu that dyed at S. James’s, Weſtminſter.

   • 1752, John Hill, “CASUARIUS. [The Cassowary.]”, in An History of Animals. […], London: Printed for Thomas Osborne, […], →OCLC, page 482:

     It is a native both of the Eaſt and Weſt Indies; and all the writers on birds have deſscribed it. Aldrovand [Ulisse Aldrovandi] calls it Emeu ſive Eme; Boulius, Emeu vulgo Caſoarius; and others, Caſſuarus.

使用する際の注意点

• A flock of emus is generally called a mob.

下位語

• (Dromaius novaehollandiae): Kangaroo Island emu (†Dromaius novaehollandiae baudinianus), King Island emu (†Dromaius novaehollandiae minor), Tasmanian emu (†Dromaius novaehollandiae diemenensis) – extinct subspecies

派生語

派生した語

• → Japanese: エミュー
• → Polish: emu

Further reading

• emu on Wikipedia.Wikipedia
• Dromaius novaehollandiae on Wikispecies.Wikispecies
• Category:Dromaius novaehollandiae on Wikimedia Commons.Wikimedia Commons

語源 2

From e(lectro)m(agnetic) u(nit).

発音

• (Received Pronunciation, General American) IPA: /ˈiːɛmˌjuː/

名詞

emu (plural emu)

1. (physics) Initialism of electromagnetic unit.

   Synonym: EMU

   • 1941, Henry A[ugustus Perkins], edited by E[dward] U[hler] Condon, College Physics (Prentice-Hall Physics Series), New York, N.Y.: Prentice-Hall, →OCLC, page 403:

     A bar magnet NS has poles of strength 144 emu, 5 cm apart.

   • 1962, “Abstracts of Papers Submitted for the Meeting in Houston: November 12–14, 1962”, in Geological Society of America: Abstracts for 1962: Abstracts of Papers Submitted for Six Meetings with which the Society was Associated (Special GSA Papers; no. 73), New York, N.Y.: Geological Society of America, published 1963, →OCLC, page 141:

     Rock Magnetic Properties as Related to a Magnetometer Profile for Serpentines, Sierra Nevada, California / DuBOIS, ROBERT L., Dept. Geology, University of Arizona, Tucson, Ariz. / The remanent magnetism of a suite of specimens from a serpentine mass in the Sierra Nevada, California, has a declination of N. 32°E. and an inclination of plus 84°. The average intensity is 80 × 10 emu/cc.

   • 1974, William Berkson, “Maxwell’s Field Theory”, in Fields of Force: The Development of a World View from Faraday to Einstein, London: Routledge & Kegan Paul, →ISBN; republished Abingdon, Oxon.; New York, N.Y.: Routledge, 2014, →ISBN, page 168:

     The amount of charge named by one emu is that which produces a unit magnetic effect when flowing in a current at one unit length per second.

   • 1976, John Aloysius O’Keefe, Tektites and Their Origin (Developments in Petrology; 4), Amsterdam; New York, N.Y.: Elsevier Scientific Pub. Co., →OCLC, page 109:

     Early investigations showed no detectable magnetic intensity in tektite glass, at the level of about 10 emu/g. (To convert measurements in emu/g to S.I., multiply by 10.)

   • 2005, Peter Mohn, “Experimental Basis of Ferromagnetism”, in Magnetism in the Solid State: An Introduction (Solid-State Sciences), Berlin: Springer-Verlag, →ISBN, →ISSN, page 39:

     Experimentally the magnetic moment is usually given in units of emu/g, emu/cm or emu/mole.

Further reading

• centimetre–gram–second system of units on Wikipedia.Wikipedia

語源 3

From emu(lator).

発音

• (Received Pronunciation) IPA: /ˈɛmjuː/
• (General American) IPA: /ˈɛmju/

名詞

emu (plural emus)

1. (computing, video games, informal) Clipping of emulator.
   • 2005 February 24, Dane L. Galden, “Could this be used for classic emus on GBA?”, in rec.games.video.classic‎ (Usenet), message-ID <9XkTd.5830$Ba3.2608@newsread2.news.atl.earthlink.net>:

     Saw this article for playing downloadable games on GBA. It's an official Nintendo product in Japan, and thought it might be useful for Nintendo to release actual emus and some of their older game properties (beyond the $20 classic series).

派生語

Further reading

• emulator on Wikipedia.Wikipedia

参照

アナグラム

• MEU, Meu, UME, Ume, meu, mue, ume