"Circular icons" refers to small graphics or symbols that are round in shape and represent various functions or apps on electronic devices such as smartphones or computers. Full definition
To access other apps, Kids will have to tap circular icons on the bottom of their screen. (laptopmag.com)
From here, tap the small, circular icon in the top - right corner. (android.gadgethacks.com)
The new version of the mail app includes colorful circular icons with the first letters of the name next to any contact you don't have in the contact list. (windowsphonearea.com)