A mathematical model
Holding something over your head gives the mental image of holding it just out of reach so that you will pursue it.
You would use a mental image if you were daydreaming or if you were experiencing something that your mind would not accept (Something disturbing, unbelievable, etc.). You could also use a mental image when you are trying to remember something or picture the result of an action or possibility.
to form a mental image of something
A conceptual model is a representation that gives a mental image of the final product.
A conceptual model is a representation that gives a mental image of the final product.
Something you describe that gives the reader or listener an image in their head.
Visualization means getting a mental image of something - in this case, a character.
Envisaged means you had a mental image of something in your mind ie a vision
it gives you the mental picture in your mind of what would happen to you if you ignored your dreams
mental image
This is a sign. A sign is a physical object that gives the reader a mental image of an idea, thought, or other mental event. The study of these kinds of ideas is called semiotics.
mental image. ;)