This is a Brain Filled icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,400 icons, all in the same style and quality.
We've received the idea on June 30, 2013 and created the icons on August 05, 2013
Medical Services: skeletal, neuro, digestive
Usage of the brain icon
The brain icon can be used in a number of ways. It can be used in medical data and literature. For example in an article that specifically talks about brain research or anatomy. It can be used for academic purposes. For example to indicate that a section of a text document is a test, quiz, or a something that needs to be thought about. The brain icon can also be used to indicate that is a brain teaser. It can also be used for fun purposed like in a mobile quiz game, or in a video that talks about the function and usage of an actual brain.