noun
missed spot (shaving); unshaven hairs
Refers to hairs or patches left behind after shaving, often used when checking one's face or body.
鏡を見たら、あごに剃り残しがあった。
When I looked in the mirror, there was a missed spot on my chin.
剃り残しがないか、もう一度チェックして。
Check again to see if there are any unshaven hairs.
剃る is the verb 'to shave'; 剃り残し is the noun for the result of incomplete shaving.
剃り跡 refers to the trace or mark left after shaving, while 剃り残し specifically means hairs that were not shaved off.
Compound of 剃り (continuative form of 剃る 'to shave') + 残し (continuative form of 残す 'to leave behind').