Clue: ___ cloud (source of comets)

Answer: OORT

Length: 4

---

Similar Clues:

• Cloud ____ (BURST with 5 letters)
• Silver _____ (cloud seed) (IODIDE with 6 letters)
• Lake ____: source of the Mississippi (ITASCA with 6 letters)
• Lake _____ (Mississippi's source) (ITASCA with 6 letters)
• _____ cloud in the sky (NOTA with 4 letters)
• Source for many US officers (ROTC with 4 letters)
• Office snack source (CANDYMACHINE with 12 letters)
• ___ cloud (region of comets far beyond Pluto) (OORT with 4 letters)
• ____ tree (white wood source) (TULIP with 5 letters)
• The ____ of Hoffman : Offenbach opera (TALES with 5 letters)