释义 |
antidune
antidune (ˈæntɪˌdjuːn) n (Geological Science) a sand hill or inclined bedding plane that forms a steep slope against the direction of a fast-flowing currentantidune
antidune[′an·tē‚dün] (geology) A temporary form of ripple on a stream bed analogous to a sand dune but migrating upcurrent. |