eggshell

Short definition from Wiktionary

Noun

1. 1
   The shell around an egg.
2. 2
   A pale off-white colour, like that of the eggshell of many chickens.

Adjective

1. 1
   Of a pale yellowish-whitish colour, like that of the eggshell.
2. 2
   Exhibiting the thinness, translucency or near-transparency, and fragility of an eggshell.
3. 3
   Very matt, having a low reflexivity, like an eggshell.