It's a logo for a wine glass with a half circle that is facing up with a triangular stem at the base. There is a line going through the half circle to show that it has wine in it.
This Wine Glass icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.