Crossword Clue:

A very brief period of time

AnswerCrossword Clue
SHORTTERMCovering a brief period of time
AEONA very long period of time
MOMENTBrief period of time
SHORTRUNBrief period of time
TRICEBrief period of time
MOMENTBrief time period
TRICEVery brief time
PSECVery brief time
PSECVery brief time, briefly
EONVery long time period