Definition of "eggshell" [egg•shell]

• The thin, brittle, exterior covering of the egg of a bird or reptile. (noun)
• A pale yellow to yellowish white. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "At 500x magnification, the structure of an eggshell is revealed as a tangled network of mineralized fibers"
• "Olives, sages, pale greys and blues: these colours were made for outdoor light, and Farrow & Ball now produces all its colours in eco exterior eggshell, which is wonderfully matt."
• "But an eggshell is a fortress compared to the feathers and gossamer skin that shield this minute nestling from all the evils of the world."