Definition of shell-pink:
(n) :
A hard external covering of an animal.
(n) :
The calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates.
(n) :
(by extension) Any mollusk having such a covering.
(n) :
(entomology) The exoskeleton or wing covers of certain insects.
(n) :
The conjoined scutes that constitute the "shell" (carapace) of a tortoise or turtle.
(n) :
The overlapping hard plates comprising the armor covering the armadillo's body.