Definitions
from The Century Dictionary.
- noun A crescentic sand-dune occurring commonly in the deserts of Turkestan. Also barkhan, barkan. See
medano .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun An arc-shaped sand ridge comprised of well-sorted sand.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Support
Help support Wordnik (and make this page ad-free) by adopting the word barchan.
Examples
-
It's what's technically known as a barchan, and the entire dune walks across the desert in a westerly direction at a speed of about 17 meters per year.
-
It's what's technically known as a barchan, and the entire dune walks across the desert in a westerly direction at a speed of about 17 meters per year.
-
It's what's technically known as a barchan, and the entire dune walks across the desert in a westerly direction at a speed of about 17 meters per year.
-
Earlier models predicted that crescent-shaped sand dunes called barchan dunes should grow to at least 500 meters long - but many are only 100 meters.
Latest Science News Features, Blog Entries, Column Entries, Issues, Articles and Book Reviews Science News 2010
-
Earlier models predicted that crescent-shaped sand dunes called barchan dunes should grow to at least 500 meters long - but many are only 100 meters.
Latest Science News Features, Blog Entries, Column Entries, Issues, Articles and Book Reviews Science News 2010
-
Earlier models predicted that crescent-shaped sand dunes called barchan dunes should grow to at least 500 meters long - but many are only 100 meters.
Latest Science News Features, Blog Entries, Column Entries, Issues, Articles and Book Reviews 2010
-
Earlier models predicted that crescent-shaped sand dunes called barchan dunes should grow to at least 500 meters long - but many are only 100 meters.
Latest Science News Features, Blog Entries, Column Entries, Issues, Articles and Book Reviews 2010
-
In case there is any mistake, Dawkins gives the example of a permanent dune - a barchan - that the wind pushes across the desert but which maintains it shape even while individual grains of sand are being blown into and out of the dune.
May 6th, 2009 m_francis 2009
-
Fine white grains of gypsum are blown by the winds to form a variety of dune types: dome-shaped, barchan, transverse, and parabolic.
-
Today's Astronomy Picture of the Day shows flowing barchan dunes on the surface of Mars.
The Lensman's Children Fred Kiesche 2009
Comments
Log in or sign up to get involved in the conversation. It's quick and easy.