How to spell "stratosphere"

"Weather balloons can reach the stratosphere, collecting data about the upper atmosphere."

• Letters

  12

• Difficulty

  hard

• Origin

  Greek

• First letter

  S

• aromatherapy
• arrhythmia
• atmosphere
• bureaucracy
• chemotherapy
• chronological
• chronology
• chrysanthemum
• cirrhosis
• cryptography
• diarrhea
• gonorrhea

All hard wordsMore Greek wordsWords starting with S