What is "undercooked"

Usage examples of "undercooked".

There were four kids, each attacking a large plate of pale, undercooked fries.

Nowadays, undercooked ham in any form could give a person trichinosis, which meant a horrible death, eaten alive by the microscopic worms.

It seemed to be mostly shredded wingbean pods and undercooked hamster meat embedded in a starchy mush that the Cygnans had synthesized or adapted from their own chemistry.

Pleas that it was needed for the humanitarian gesture of a proper funeral were countered with remarks about the expense and effort involved in obtaining the wood in the first place and the discomforts of eating undercooked food or sleeping in a cold house.

What if I picked up an as-of-yet undiscovered crazy cow virus by eating an undercooked cheeseburger?