euthutropicadj.

/juːθjuːˈtrɒpɪk/Etymology: < Greek εὐθύς straight + τρόπος direction + -ic suffix.
Seismology.
1881 J. Milnes in No. 632. 126 In other shocks normal or direct vibrations are the most prominent. These shocks might be called euthutropic.
This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2018).