From The Collaborative International Dictionary of English v.0.48 [gcide]:
Demolition \Dem`o*li"tion\ (?; 277), n. [L. demolitio, fr.
demoliri: cf. F. d['e]molition. See Demolish.]
The act of overthrowing, pulling down, or destroying a pile
or structure; destruction by violence; utter overthrow; --
opposed to construction; as, the demolition of a house, of
military works, of a town, or of hopes.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
demolition
n 1: an event (or the result of an event) that completely
destroys something [syn: destruction, demolition,
wipeout]
2: the act of demolishing