ɐn ˌoʊvɚbˈæŋk ɪz ɐn ɐlˈuːvɪəl dʒˌɪəlˈɑːdʒɪkəl dᵻpˈɑːzɪt kənsˈɪstɪŋ ʌv sˈɛdɪmənt ðɐthɐzbˌɪn dᵻpˈɑːzɪɾᵻd ɔnðə flˈʌdpleɪn əvɚ ɹˈɪvɚ ɔːɹ stɹˈiːm baɪ flˈʌd wˈɔːɾɚz ðæt hæv bɹˈoʊkən θɹuː ɔːɹ ˌoʊvɚtˈɑːpt ðə bˈæŋks.
An overbank is an alluvial geological deposit consisting of sediment that has been deposited on the floodplain of a river or stream by flood waters that have broken through or overtopped the banks.