Related Clues:

• Prefix for ''cycle'' or ''state''
• Sesqui- doubled
• Prefix with -logy
• The first "T" of TNT
• Prefix denoting ''eight''
• The first 'T' in 36-Down
• See 64A
• Ten: Pref.
• Pi opening?
• Prefix with gon
• Prefix with ''sect''
• It means ''ten''
• Prefix with state or angle
• Intro to pi?
• One more than bi-