pendulationn.

1822 Edinb. Mag. & Literary Misc. Feb. 161 They advance, bowing at every other step, and retreat with the same respectful pendulation, the Speaker sitting all the while and nodding his head in reciprocal recognition.

1925 Amer. Speech 1 77 I am for all time resolved into pendulation, an inglorious pendulation, upon dead men's lives.

1934 Philos. Trans. (Royal Soc.) B. 224 254 A spell of pendulation can at any time be stopped by providing..some temporary support for the downward moving chin.

1967 20th Cent. Lit. 12 180/1 The early pendulation between acute observation of reality and uncritical absorption in his own string of associations.

1967 Ann. Assoc. Amer. Geographers 57 126/2 The pendulation of climatic types certainly did not operate as a strict mechanism of climatic oscillation in precise order.

1990 A. M. Chupra Anne, White Woman in Contemp. Afr.-Amer. Fiction i. 26 Madge and Kriss are motivated by unconscious ambivalence, whereas Lula's pendulation is deliberate.

1908 Science 18 Sept. 375/2 Theories of polar pendulation, based on geological or geographical considerations, have been proposed independently in the past few years by two investigators, one an engineer, another a geologist.

1924 J. G. A. Skerl tr. A. Wegener Orig. Continents & Oceans vi. 95 Unfortunately, Reibisch clothed his ideas..in the singular straight-jacket of a strict ‘pendulation’ of the poles in an ‘orbit of swings’, which is probably false.

1953 E. Palmer tr. S. Ekman Zoogeogr. of Sea iii. 61 Simroth gives several similar genera whose distribution he explains by his pendulation theory.