Eggshell

[eg-shel] /ˈɛgˌʃɛl/

noun
1.
the shell of a bird’s egg, consisting of keratin fibers and calcite crystals.
2.
a pale yellowish-white color.
3.
rather bulky paper having a slightly rough finish.
adjective
4.
like an eggshell, as in thinness and delicacy; very brittle; fragile.
5.
being pale yellowish-white in color.
6.
having little or no gloss:
eggshell white paint.
/ˈɛɡˌʃɛl/
noun
1.
the hard porous protective outer layer of a bird’s egg, consisting of calcite and protein
2.
a yellowish-white colour
3.
a type of paper with a slightly rough finish
4.
(modifier) (of paint) having a very slight sheen: an eggshell finish
5.
walk on eggshells, to be very cautious or diplomatic for fear of upsetting someone
adjective
6.
of a yellowish-white colour: eggshell paint
n.

early 15c., from egg (n.) + shell (n.). Earlier ay-schelle (c.1300). Emblematic of “thin and delicate” from 1835; as a color term, from 1894. The figure of treading on eggshells “to move cautiously” is attested by 1734.