The term "crack" refers to a modified version of the software that bypasses its licensing and activation mechanisms. In this case, the crack for Adobe Photoshop CC 2018 19.1.8.26053 for Mac OSX allows users to use the software without purchasing a legitimate license.

Adobe Photoshop CC 2018 19.1.8.26053 is a professional image editing software developed by Adobe Inc. It's a part of the Adobe Creative Cloud (CC) suite, which offers a wide range of creative applications. Photoshop is widely used for photo editing, graphic design, digital art, and more.