It is an icon of a skull the two bones in an x. The skull has blank eyes with a upward arrow as a nose. There are three squares for teeth. The skull is overlapping with the bones behind it.
This Poison icon has Android KitKat style
. If you use the icons for Android apps, we recommend using our latest Material Icons icon pack (please check our sidebar on the right). Otherwise, it's a solid icon pack that looks good in small resolutions, either on the web or in print. It's characterized by thick lines, smooth corners, and is optimized for 24x24 pixels.