1. One trillionth ( 10 - 12 ) of a second.

2. He made a map of the world at one ten trillionth scale.

3. A prefix meaning a trillionth or one-millionth of one-millionth Symbol isp.

4. Collisions which occurred in the universe when ( it was ) something like a trillionth of second old.

5. Collisions, collisions which occurred occurred in the universe when it was a trillionth a second old.

6. 16 Drug amounts registered between 29 and 850 picograms — a picogram is one-trillionth of a gram — per cubic meter of air.

7. Because the tomato is actually ripe, and the light is bouncing around inside the tomato, and it comes out after several trillionths of a second.