Definitions

1. noun

A very small amount or quantity of something.

“He poured a single pinhead of oil into the engine.”

2. noun

The head of a pin, especially one that is very small or delicate.

“The tiny pinhead was used to repair the delicate mechanism.”

3. verb

To pierce or prick with a small pin or point, especially in a delicate or careful manner.

“She pinheaded the delicate fabric with a fine needle.”