Definition of aldehyde ammonia in US English:

aldehyde ammonia

noun

rare
  • An organic compound having a hydroxyl and an amino group attached to the same carbon atom; (in earliest use) specifically 1-aminoethanol, CH₃CH(OH)(NH₂), a crystalline solid formed by reaction of acetaldehyde (ethanal) and ammonia.

Origin

Mid 19th century; earliest use found in The Penny Cyclopaedia.