panplainn.

Brit.

/ˈpanpleɪn/, U.S.

/ˈpænˌpleɪn/

Forms: 1900s– panplain, 1900s– panplane (rare).

Origin: Formed within English, by compounding. Etymons: pan- comb. form, plain n.¹

Etymology: < pan- comb. form + plain n.¹ (see quot. 1933).

Physical Geography. Now chiefly historical.

A plain formed by the coalescence of previously separate flood plains.

ΘΚΠ

the world > the earth > land > landscape > level land > [noun] > level place or plain > types of

sand-flat1773

alluvial plain1803

sand-plain1818

sandveld1824

tundra1841

bench-land1845

salt flat1873

panfan1915

panplain1933

pediplain1935

soda plain1946

1933 C. H. Crickmay in Geol. Mag. 70 345 We would expect the growing floodplains to become confluent, making one broad universal plain shared by all the streams of the region... This plain, formed of floodplains joined by their own growth, may be called a panplain.

1942 O. D. von Engeln Geomorphol. vi. 97 Eventually the level surfaces of adjacent stream floors..become confluent and a panplane, a very level plain with a general downward inclination, is produced.

1967 J. Hays in J. N. Jennings & J. A. Mabbutt Landform Stud. Austral. & New Guinea ix. 200 Near Darwin, the panplains of north-flowing and west-flowing streams have coalesced.

1983 Catena 10 395 The entire development can be characterized as a development sequence from panplain to pediplain, pediment, and terrace sequence.

1996 C. Ollier & C. Pain Regolith, Soils & Landforms xiii. 203 Crickmay..believed that lateral planation by rivers was a dominant process and produced what he called a panplain. Modern workers find little support for this theory.

This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).

单词	panplain
释义	panplainn. Brit. /ˈpanpleɪn/, U.S. /ˈpænˌpleɪn/ Forms: 1900s– panplain, 1900s– panplane (rare). Origin: Formed within English, by compounding. Etymons: pan- comb. form, plain n.¹ Etymology: < pan- comb. form + plain n.¹ (see quot. 1933). Physical Geography. Now chiefly historical. A plain formed by the coalescence of previously separate flood plains. ΘΚΠ the world > the earth > land > landscape > level land > [noun] > level place or plain > types of sand-flat1773 alluvial plain1803 sand-plain1818 sandveld1824 tundra1841 bench-land1845 salt flat1873 panfan1915 panplain1933 pediplain1935 soda plain1946 1933 C. H. Crickmay in Geol. Mag. 70 345 We would expect the growing floodplains to become confluent, making one broad universal plain shared by all the streams of the region... This plain, formed of floodplains joined by their own growth, may be called a panplain. 1942 O. D. von Engeln Geomorphol. vi. 97 Eventually the level surfaces of adjacent stream floors..become confluent and a panplane, a very level plain with a general downward inclination, is produced. 1967 J. Hays in J. N. Jennings & J. A. Mabbutt Landform Stud. Austral. & New Guinea ix. 200 Near Darwin, the panplains of north-flowing and west-flowing streams have coalesced. 1983 Catena 10 395 The entire development can be characterized as a development sequence from panplain to pediplain, pediment, and terrace sequence. 1996 C. Ollier & C. Pain Regolith, Soils & Landforms xiii. 203 Crickmay..believed that lateral planation by rivers was a dominant process and produced what he called a panplain. Modern workers find little support for this theory. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022). < n.1933
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