Mrs Grundy is a common prototype for narrow-mindedness and prudishness.
Advanced English Dictionary
+noun ~ (for / of sth) the first design of sth from which other forms are copied or developed: the prototype of the modern bicycle + Scientists have developed a working prototype for a voice translation machine. prototypical adjective
Collocation Dictionary noun
pre-production | working
VERB + PROTOTYPE
build, develop | test
PROTOTYPE + NOUN
The car is presently at the prototype stage.
The team is developing a prototype for a digital compact camera.
| ~ of
He is working on the prototype of a new type of ventilator.
Random quote: If you would take, you must first give, this is the beginning of intelligence.: Lao Tzu