[ee-myoo] 
| 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. |
| 1. | Also, emu electromagnetic unit. |
| 2. | Aerospace. extravehicular mobility unit. |
| electromagnetic unit n. Abbr. EMU Any of various systems of units for electricity and magnetism based on a system of equations in which the permeability of free space is taken as unity and by means of which the abampere is defined as the fundamental unit of current. |
| e·mu (ē'myōō) n. A large, flightless Australian bird (Dromiceius novaehollandiae) related to and resembling the ostrich and the cassowary. [Portuguese ema, rhea.] |
| EMU abbr.
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| emu electromagnetic unit |
EMU
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