[1] OculusVR/Flicks: A unit of time defined in C++. () https://github.com/OculusVR/Flicks

A flick (frame-tick) is a very small unit of time. It is 1/705600000 of a second, exactly.

1 flick = 1/705600000 second

[2] Facebook、新たな時間の最小単位「Flick」を提唱 ~映像やゲーム制作向け - PC Watch (株式会社インプレス著, ) https://pc.watch.impress.co.jp/docs/news/1102480.html