hypoplasia

/ˌhaɪpoʊˈpleɪʒə/
noun
  1. A medical condition where a body part, organ, or tissue does not develop fully or is smaller than normal.
    • Dental hypoplasia can cause weak enamel and increased cavities.
    • The baby was born with hypoplasia of the left lung, which was smaller than the right.
    • Doctors monitor children with hypoplasia to ensure their organs grow as needed.
Antonyms