This Minus 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 4,400 icons, all in the same style and quality.
It is a circle with a horizontal line directly in the middle of the circle. The horizontal line stops slightly before reaching the edge of the circle so no part of the line actually touches the circle itself.
Related to Minus Icon
Related icons are the icons with matching tags, as well as all science icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors