A Streak

1. An irregular line left from smearing or motion.
2. A continuous series of like events.
3. The color of the powder of a mineral. So called, because a simple field test for a mineral is to streak it against unglazed white porcelain.
4. A moth of the family Geometridae, *Chesias legatella*.
5. A tendency or characteristic, but not a dominant or pervasive one.
6. (shipbuilding) A strake.
7. A rung or round of a ladder.
8. The act of streaking, or running naked through a public area