eggshell

n.	1.	The shell or exterior covering of an egg. Also used figuratively for anything resembling an eggshell.
	2.	(Zool.) A smooth, white, marine, gastropod shell of the genus Ovulum, resembling an egg in form.
a.	1.	of a pale, yellowish-white color; as, an eggshell ceiling and light green walls.
	2.	(Architecture) having a smooth but not glossy texture like that of a hen's egg; as, a latex paint giving an eggshell finish. Also referred to as matte glaze or non-lustrous glaze.

Noun

1.

eggshell - the exterior covering of a bird's egg Synonyms: shell

alabaster, alabastrine, albescent, albumen, bubble, caviar, china, cream, creamy, delicate, dun-white, egg, egg white, fair, fish eggs, flat, glair, glass, glass house, glaucescent, glaucous, gloss, gray-white, house of cards, ice, iridescent, ivory, ivory-white, light, lint-white, matchwood, mellow, mother-of-pearl, nacreous, off-white, old paper, opalescent, ovule, pale, parchment, pastel, patinaed, pearl, pearly, pearly-white, piecrust, quiet, roe, sad, semigloss, simple, sober, soft, soft-colored, soft-hued, softened, somber, spawn, subdued, subtle, sweet, tender, vitellus, white, whitish, whity, yellow, yolk