sas·tru·ga (să-strgə, săstrə-, sästrə-) also zas·tru·ga (ză-strgə, zä-)
n. pl. sas·tru·gi (-gē) also zas·tru·gi
A long wavelike ridge of snow, formed by the wind and found on the polar plains.
[Russian dialectal zastruga : za, beyond + struga, deep place into which one may fall; see sreu- in the Appendix of Indo-European roots.]
(click for a larger image)sastruga
Castle Rock and Mt. Erebus
Ross Island, Antarctica
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