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anti-dip

anti-dip Physical Geogr.
  (æntɪˈdɪp)
  [cf. dip n. 5.]
  Used attrib. (see quot. 1961).

1900 Proc. Cotteswold Club XIII. 178 It may be premised that dip streams are termed consequents..and anti-dip streams, obsequents. 1961 L. D. Stamp Gloss. Geogr. Terms 27/1 Anti-dip stream, a stream flowing in approximately the opposite direction to the regional dip.

Oxford English Dictionary

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