Anallagmatic
Anallagmatic ({not transcribed}) , adjective
[Greek {not transcribed}; 'an priv. + {not transcribed} a change.]
(Mathematics) Not changed in form by inversion.
Collocations (2)
Anallagmatic curves , a class of curves of the fourth degree which have certain peculiar relations to circles; -- sometimes called bicircular quartics.
Anallagmatic surfaces , a certain class of surfaces of the fourth degree.