mudflown.
/ˈmʌdfləʊ/, U.S. /ˈmədˌfloʊ/ A flowing or hardened stream of mud, such as one resulting from soil made fluid by excessive water, or one produced by a mud volcano; a lahar. Also: the flow or motion of such a stream.
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the world > the earth > structure of the earth > structural features > volcanic formations > [noun] > mud-flow
mudflow1869
lahar1929
the world > the earth > structure of the earth > formation of features > movement of material > [noun] > movement under gravity or water > mud flow
mudflow1869
mud rush1903
1869 Harper's Mag. Apr. 620/1 From the Imbaburu's northern slope has started a torrent of mud... The mud flow was followed by a less one of water.
1897 Science 22 Feb. 82/1 Mr. Turner cited the vast tuff deposits of the Sierras, which he attributed to mud-flows of tuffs on a grand scale.
1944 C. A. Cotton Volcanoes xiii. 240 The contents of a large crater lake on St Vincent (Antilles) were ejected so as to generate extensive mudflows which rushed down various radial valleys to the sea.
1970 R. J. Small Study of Landforms ii. 30 Mud-flows occur in mountain areas after heavy rainfall, in periglacial areas during the thaw season, on the slopes of erupting volcanoes and even in deserts.
1990 A. S. Trenhaile Geomorphol. Canada iii. 48 Debris flows and mudflows travel considerable distances in confined channels.
This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022).
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n.1869