1 a pull down (a building). b completely destroy or break.
2 overthrow (an institution).
3 refute (an argument, theory, etc.).
4 joc. eat up completely and quickly.
Derivatives:
demolisher n. demolition n. demolitionist n.
Etymology: F deacutemolir f. L demoliri (as DE-, moliri molit- construct f. moles mass)
Useful english dictionary. 2012.