Corium

Origin 1

From Latin corium ("leather").

Full definition of corium

Noun

corium

(plural coria)

(anatomy) The inner layer of skin, the dermis.
(anatomy) The deep layer of mucous membranes beneath the epithelium.
(historical) Armour made of leather, particularly that used by the Romans.

Origin 2

core + -ium

Noun

corium

(uncountable)

(nuclear physics) The lavalike material produced in a nuclear meltdown.

2009, Wei Wei and Xin-rong Cao, "The Simulation of Corium Dispersion in Direct Containment Heating Accidents", Zero Carbon Energy Kyoto 2009.
2011, C. Journeau and M. Ficsher, Nuclear Safety in Light Water Reactors: Severe Accident Phenomenology, page 569:As a result, dedicated core catchers have been designed that can gather the corium and cool it safely.----