It is a meaning for a hazard symbol
The hazard symbol warning of a flammable liquid looks link a stylized flame.
There isn't a specific hazard symbol for acidic substances but many acids will be labelled as corrosive and, or harmful (and an irritant).
The oxidizing hazard symbol means the substance has the ability to react with oxygen, usually dangerously.
You will have a large x with a h standing for harmful
Any product likely to pose a hazard to individuals, animals or the environment if used incorrectly.
A type of atmospheric hazard that can be poisonous or harmful. Gases and dusts may be toxic if inhaled.
The hazard symbol for bromine is YOUR MAM
The hazard symbol is a skull with crossbones - the meaning is death.
Hazard means danger or harmful. Like, when you see a sticker on a battery that says "Hazard" on it, you wouldn't open it or anything, because it is a hazard. (or to be more specific, a biohazard)
Fragmentation hazard
The hazard symbol for bromine is YOUR MAM