There are two straight lines, one is horizontal and the other is vertical. The vertical line is on the far left of the horizontal line touching it, the horizontal line is in the middle of the vertical line. The wave starts from the top of the vertical line, then goes through the horizontal until it reaches the bottom of the vertical and then back up.
Related to Plot 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