coˈlluvial, a. rare.
[f. colluvi-es + -al1.]
a. Of or pertaining to a colluvies; sink-like.
| 1822 Abp. Magee Charge 33 The colluvial nature of the Metropolis, which naturally collects adventurers of all professions. |
b. Geol. Applied to soil at the foot of a slope, containing rock detritus or talus.
| 1880 S. W. Johnson How Crops Feed ii. iii. 146 Colluvial soils..while consisting in part of drift or alluvium, also contain sharp angular fragments of the rock from which they mainly originated. 1955 Proc. Prehist. Soc. XXI. 59 This horizon..resembles that at the type locality of Göttweig, even to the presence of colluvial material above the soil. |