# Silastic

> English word · Proper noun

## Definitions
1. A type of flexible, inert silicone rubber, used especially in prosthetic medicine to make devices such as shunts to control hydrocephalus, artificial heart valves and breast implants.

## Etymology
Blend of silicone + plastic. Originally a brand name.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/silastic