emu

¹ American  

[ee-myoo] / ˈi myu /

noun

1. a large, flightless, ratite bird, Emu (Dromaius ) novaehollandiae, of Australia, resembling the ostrich but smaller and having a feathered head and neck and rudimentary wings.

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EMU ² American  

1. Also electromagnetic unit.

2. Aerospace. extravehicular mobility unit.

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e.m.u. ¹ British  

abbreviation

1. electromagnetic unit

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EMU ² British  

abbreviation

1. European Monetary Union

2. Economic and Monetary Union

3. See e.m.u.

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emu ³ British  

/ ˈiːmjuː /

noun

1. a large Australian flightless bird, Dromaius novaehollandiae, similar to the ostrich but with three-toed feet and grey or brown plumage: order Casuariiformes See also ratite

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EMU Scientific  

1. Abbreviation of electromagnetic unit

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Etymology

Origin of emu

1605–15; earlier emeu (in earliest E source emia, eme ), ultimately < Portuguese ema, attested in 1541 as a name for the cassowary (further origin obscure); the replacement of -a by -eu, etc., is unexplained

Explanation

An emu is a very large, flightless bird that is only slightly shorter than its close relative, the ostrich. You're likely to see emus if you travel around their native continent of Australia. Emus reign as the biggest bird in Australia, growing to a height of six feet or more as adults. These long-legged birds have soft brown feathers and relatively small wings that they flap as they run (sometimes sprinting at 30 miles per hour), though sadly, they're unable to take flight. Etymologists guess that emu comes from the Portuguese word for "ostrich," ema.

Example Sentences

Colossal Biosciences would again edit the genes of a close living relative, such as the emu or tinamou, and call it a moa.

From Slate • Aug. 8, 2025

The newspaper reported that the birds had succeeded his pet emu, Toby, who regularly attacked his wife, the actor Cheryl Hines, and was later killed by a mountain lion.

From Los Angeles Times • Aug. 6, 2024

“I start telling him about this script, and the emu starts chasing me as fast as he could,” she recalled.

From New York Times • Jun. 19, 2024

Officers from Kent Police were alerted and joined in the capture of the emu which a spokesman said had escaped from a residential property.

From BBC • Nov. 13, 2023

I could also name some rarer animals: chinchilla, mink, crocodile, ostrich, emu, beaver, leopard.

From "Not Nothing" by Gayle Forman