grey dune
(US gray dune)
noun
A mature vegetated sand dune, typically having a grey colour due to an abundance of lichens (especially those of the genus Cladonia).
Origin
Late 19th century; earliest use found in The Botanical Gazette.
- unrestrainable
- unrestrained
- unrestrainedly
- unrestrainedness
- unrestraint
- unrestricted
- unrestrictedly
- unrestrictedness
- unrestrictive
- unresty
- unretained
- unretaliated
- unretarded
- unretentive
- unretire
- unretired
- unretirement
- unretorted
- unretouched
- unretractable
- unretracted
- unretreating
- unretrievable
- unretrieved
- unretted