Definition of olistostrome in English:
olistostrome
Pronunciation /ɒˈlɪstə(ʊ)ˌstrəʊm/
noun
Geology
A sedimentary deposit composed of a heterogeneous mixture of materials and formed by the sliding or slumping of semi-fluid sediment.
Origin
1950s. From ancient Greek ὀλισθεῖν to slip, glide + στρῶμα bed.