noun
stubble after shaving; shaving stubble
Refers to the short, rough hair left on the skin after shaving.
今朝剃ったのに、もう剃り跡が気になる。
Even though I shaved this morning, I'm already bothered by the stubble.
剃り跡が青々としている。
The shaving stubble looks bluish.
Refers to a deliberately grown or unshaven stubble/beard, while 剃り跡 is specifically the short stubble left right after shaving.
Compound of 剃り (sori, 'shaving', from 剃る) and 跡 (ato, 'trace, mark').