Etymology

allantoin

A1L1L1A1N1T1O1I1N1

Today it means: A diureide of glyoxylic acid, used in various pharmaceutical and cosmetic products; or a derivative of this compound Full definition →

English allanto- ← Ancient Greek ᾰ̓λλᾶς (ăllâs)
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The story

  1. Ancient Greekᾰ̓λλᾶς (ăllâs)
  2. Englishallanto-
  3. English todayallantoin

From allanto- + -in; this substance concentrates in the allantois during development in most mammals.

Etymology from Wiktionary, CC BY-SA 4.0.