Shell

pancerz

(entomology: exoskeleton of certain insects)

plewa

(husks of cacao seeds)

pocisk

(hollow usually spherical or cylindrical projectile fired from a mortar or a cannon)

powłoka

(computing: general-purpose environment)

powłoka walencyjna

(chemistry: set of atomic orbitals that have the same principal quantum number)

skorupa

(hard calcareous or chitinous external covering of many invertebrates)

skorupa

(conjoined scutes that comprise the "shell" of a tortoise or turtle)

skorupka

(hard covering of an egg)

spółka wydmuszka

(business: legal entity that has no operations)

strączek

(pod)

strąk

(pod)

łupina

(covering of a nut)

łuska

(casing of an artillery projectile)