1. (especially of human beings) at the age immediately before puberty; often marked by accelerated growth
   - prepubescent

See also: immature, prepuberty

• Actaea
• Actaea alba
• Actaea rubra
• ACTH
• Actias
• Actias luna
• Actifed
• actin
• actinal
• Actinaria
• acting
• acting out
• actinia
• actinian
• Actiniaria
• actiniarian
• actinic
• actinic dermatitis
• actinic keratosis
• actinic radiation
• actinic ray
• actinide
• actinide series
• Actinidia
• Actinidia arguta