Pronunciation: (ig'lOO), [key]
1. an Eskimo house, being a dome-shaped hut usually built of blocks of hard snow.
2. Informal.any dome-shaped construction thought to resemble an igloo: immense silos topped with steel igloos.
3. Mil.a dome-shaped building for the storage of rockets or other munitions.
4. an excavation made by a seal in the snow over its breathing hole in the ice. Also,ig'lu.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.