Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A transparent dome on the top of an aircraft, through which celestial observations are made for navigation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A transparent dome in the fuselage of an aircraft or spacecraft through which navigational observations may be made

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a transparent dome on top of an airplane where the navigator can make celestial observations

Etymologies

astro- +‎ dome (Wiktionary)

Examples

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