Etymology

isoseismal

I1S1O1S1E1I1S1M3A1L1

Today it means: A line on a map joining points of equal seismic intensity produced by an earthquake. Full definition →

English seismal ← Ancient Greek ῐ̓́σος (ĭ́sos)
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The story

  1. Ancient Greekῐ̓́σος (ĭ́sos)
  2. Englishiso-
  3. Englishseismal
  4. English todayisoseismal

From iso- + seismal.

Etymology from Wiktionary, CC BY-SA 4.0.