• draction a second,
• craction a second,
• vraction a second,
• graction a second,
• traction a second,
• rraction a second,
• feaction a second,
• fdaction a second,
• ffaction a second,
• ftaction a second,
• f5action a second,
• f4action a second,
• frzction a second,
• frsction a second,
• frwction a second,
• frqction a second,
• fraxtion a second,
• fravtion a second,
• fraftion a second,
• fradtion a second

The adjective form of the phrase "fraction of a second" is "fractional".