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isenergic
isenergic adj. and n. 
/ˌaɪsiˈnərdʒɪk/, /ˌaɪzəˈnərdʒɪk/, /ˌaɪziˈnərdʒɪk/ Physics . (a) adj. indicating equal energy, as a line on a diagram; (b) n. a graphical curve representing constant energy.
Brit. /ˌʌɪsᵻˈnəːdʒɪk/
, /ˌʌɪsᵻˈnəːdʒɪk/U.S. /ˌaɪsəˈnərdʒɪk/
, /ˌaɪsəˈnərdʒɪk//ˌaɪsiˈnərdʒɪk//ˌaɪzəˈnərdʒɪk//ˌaɪziˈnərdʒɪk/ΚΠ
1902 Encycl. Brit. XXXIII. 285/1 The lines of constant energy on the diagram are called Isenergics.
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