The definition of a dome is a roof or building shaped in a dome, or is slang for the head.(noun)
See dome in Webster's New World College Dictionary
Origin: domesense < L domus, house (< IE *domu- < base *dem-, to build); others < Fr dôme < Prov doma < LL(Ec), roof, building, cathedral < Gr dōma, housetop, house, temple < same IE base: see timber, dominate
See dome in American Heritage Dictionary 4
Origin: From French dôme, dome, cathedral (from Italian duomo, cathedral, from Latin domus, house; see dem- in Indo-European roots)
Origin: and from French dôme, roof (from Provençal doma, from Greek dōma, house; see dem- in Indo-European roots).
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