The Sherlock Holmes stories are the 'prototypes' of modern detective stories.
He is the 'prototype' of a conservative businessman.
He is developing a 'prototype' for his invention.
(..) in this time. This is deep. This other guy, he's a terminator like you, right? Not like me. A T-. Advanced prototype. You mean more advanced than you are? Yes. A mimetic polyalloy. What does that mean? Liquid metal. (..)1991 Terminator 2: Judgment Day