Crossword clue: a rare abnormality marked by premature aging (grey hair and wrinkled skin and stooped posture) in a child

The most common answer is progeria (8 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

progeria 8 letters wn-def

a rare abnormality marked by premature aging (grey hair and wrinkled skin and stooped posture) in a child