It's a term for lung disease caused by silica dust.
A MacGuffin is that object in a film which is critical to the characters, but carries insignificant meaning for the audience.
A MacGuffin, a term introduced and widely used by Alfred Hitchcock is some element which drives the plot. The audience is not very concerned with the specifics of it.
<span>the use of words to create a picture in the mind</span>
<em>Answer: I would say Test is the right answer.</em>
