Larry's Pretty Good Word of the Day (prettygoodword) wrote in 1word1day,
Larry's Pretty Good Word of the Day
prettygoodword
1word1day

Thursday word: barchan

barchan (bahr-KAHN) - n., a crescent-shaped dune, with the arms of the crescent pointing downwind.


These form in areas with moderate constant winds, and travel downwind while retaining their shape. Can also happen in snow, though those are generally less widely noticed -- and less permanent. Per Wikipedia:
As barchan dunes migrate, smaller dunes outpace larger dunes, bumping into the rear of the larger dune and eventually appear to punch through the large dune to appear on the other side. The process appears superficially similar to waves of light, sound, or water that pass directly through each other, but the detailed mechanism is very different.
Which is, of course, fascinating. By way of remembering the pronunciation, also sometimes spelled barkhan. Adopted in 1888 from Russian, where it was adopted by naturalist Alexander von Middendorf from Kazakh (the deserts of Kazakhstan have many barchans), presumably from Turkic roots.

The barchans in the park walk across the desert in a westerly direction at a speed of about 17 meters per year.

(Apologies for skipping last week, but I was caught up in an out-of-town family emergency.)

---L.
Tags: b, kazakh, noun, russian
Subscribe

  • Tuesday word: Purify

    Tuesday, Apr. 13, 2021 Purify (verb) pu·ri·fy [pyoor-uh-fahy] verb (used with object) 1. to make pure; free from anything that debases,…

  • Tuesday word: Decry

    Tuesday, Mar. 30, 2021 Decry (verb) decry [ dih-krahy ] verb (used with object) 1. to speak disparagingly of; denounce as faulty or worthless;…

  • Sunday Word: Ensorcelled, ensorceled

    Ensorcelled, ensorceled [en- sawr- suhl -d] past tense verb: bewitched, enchanted Examples: 'Charity,' drawing from W W's 'The Monkey's…

  • Post a new comment

    Error

    Comments allowed for members only

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

  • 1 comment