A Plaster Rendering of the Inside of a Skull

This page is the CodyCross answer for the clue below from Rainforest, Group 1203, Puzzle 5 (Venomous Snakes).

Question is: A Plaster Rendering of the Inside of a Skull

and the answer is: ENDOCAST

Word Meaning:

ENDOCAST — A cast made of the mould formed by the impression the brain makes on the inside of the neurocranium, providing a replica of the brain with most of the details of its outer surface.

Definitions from Wiktionary.