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superdeformation
superdeformation n. 
/ˌsjuːpədiːfɔːˈmeɪʃn/, /ˌsupərˌdɛfərˈmeɪʃ(ə)n/ Nuclear Physics the property or state of being superdeformed.
Brit. /ˌsuːpədiːfɔːˈmeɪʃn/
, /ˌsuːpədiːfɔːˈmeɪʃn//ˌsjuːpədiːfɔːˈmeɪʃn/U.S. /ˌsupərˌdiˌfɔrˈmeɪʃ(ə)n/
, /ˌsupərˌdiˌfɔrˈmeɪʃ(ə)n//ˌsupərˌdɛfərˈmeɪʃ(ə)n/ΚΠ
1983 Nucl. Physics A. 409 280c (table) Shape change and superdeformation at high spin.
2010 F. Yang & J. H. Hamilton Mod. Atomic & Nucl. Physics (rev. ed.) xi. 533 Centered around N = Z = 38 and around Z = 38, N = 60, 62 are two new islands of superdeformation with quadrupole deformation β2 ≃ 0.40–0.45.
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