pompom /pomˈpom/, pompon /pomˈpon/ or (obsolete) pompoon /pom-poonˈ/

1. A jewelled hair ornament on a pin (obsolete)
2. A fluffy or woolly ball, tuft, or tassel worn on a shoe, hat, etc

• hydrocele
• hydroceles
• hydrocellulose
• hydrocelluloses
• hydrocephalic
• hydrocephalous
• hydrocephalus
• hydrocephaluses
• Hydrocharis
• Hydrocharitaceae
• hydrochloric
• hydrochloride
• hydrochlorides
• hydrochlorofluorocarbon
• hydrochore
• hydrochores
• hydrochoric
• hydrocolloid
• hydrocolloids
• Hydrocorallinae
• hydrocoralline
• hydrocorallines
• hydrocortisone
• hydrocortisones
• hydrocracking