What does this word mean????

Spring Break Day 1
Today is the first full day of my spring break and i am sticking to my promise of not being lazy. So i figured i would start with one of the easy questions on my list, what does the word mural mean? So i surfed (wow that's an old term) dictionary.reference.com and browse the word "mural" and this is what i got. The word mural is both a noun and an adjective.

–Noun

• a large picture painted or affixed directly on a wall or ceiling.

• a greatly enlarged photograph attached directly to a wall.

• a wallpaper pattern representing a landscape or the like, often with very widely spaced repeats so as to produce the effect of a mural painting on a wall of average size; a trompe l'oeil.----what is that?!

 (WOW that was easy) The funny thing about this question is that i kinda knew what was going to show up when i looked up the word mural. Its a a no brainier ; )