storm petrel noun phr. ['stɔ:m pɛtr(ǝ)l] L18.
[from STORM noun + PETREL.]
1. A very small European sea bird of the open ocean, Hydrobates pelagicus, having blackish plumage with a white rump (also British storm petrel). Also (with specifying word), any of various other petrels of the family Hydrobatidae. L18.
Leach's storm petrel, Wilson's storm petrel, etc.

2. A person who delights in conflict, or whose appearance on the scene heralds trouble. M19.

[TahlilGaran] English Dictionary ▲