Etymology

chromosomal

C3H4R1O1M3O1S1O1M3A1L1

Today it means: Of or relating to chromosomes. Full definition →

Proto-Indo-European *h₂élisder.? ← English chromosome
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The story

  1. Englishchromosome
  2. Proto-Indo-European*h₂el-
  3. Proto-Indo-European*h₂élisder.?
  4. English todaychromosomal

From chromosome + -al.

Etymology from Wiktionary, CC BY-SA 4.0.