colluvium
noun
col·lu·vi·um kə-ˈlü-vē-əm 
plural colluvia kə-ˈlü-vē-ə or colluviums
or colluviums : rock detritus and soil accumulated at the foot of a slope
colluvial
kə-ˈlü-vē-əl
adjective 
Word History
Etymology
New Latin, from Medieval Latin, offscourings, alteration of Latin colluvies, from colluere to wash, from com- + lavere to wash — more at lye
First Known Use
circa 1936, in the meaning defined above
colluvia
noun
variants or colluviums
as in alluviums
Synonyms & Similar Words
Relevance
- alluviums
- loesses
- sediments
- silts
- alluvia
- marls
- molds
- detritus
- blacklands
- shingles
- kaolins
- clays
- gaults
- muds
- gleys
- earth
- gucks
- dirt
- dust
- clods
- sands
- gravels
- ground
- gumbos
- muck
- topsoils
- humuses
- loams
- subsoils
- gooks
- duffs
- substrata
- mulls
