n.

a smoky fire to drive away insects

a blemish made by dirt

"he had a smudge on his cheek"

同義詞：spotblotdaubsmearsmirchslur

Viewable surface having unnoticeable smudges
A young man with a recent complaint of blury spots and smudges in his peripheral vision presents to the Wills ER
Smudges and Leaf Prints (Book Review)
Colorado wildfire smoke smudges skies in Wyoming
Getting Badgered Michigan Smudges Wisconsin's Perfect Year
Structures and textures in till indicating subglacial deposition
Boosting the Guessing Attack Performance on Android Lock Patterns with Smudge Attacks
Smudge attacks on smartphone touch screens
Image Thresholding for Optical Character Recognition and Other Applications Requiring Character Image Extraction
Sequential priming measures of implicit social cognition: a meta-analysis of associations with behavior and explicit attitudes.