trace; vestige; mark; sign; evidence
scar (e.g. from operation, injection); trace; mark (e.g. skid marks)
operation scar; scar from an operation
rifling marks on a fired bullet
skid mark; tire mark; tyre mark
injection scar (e.g. injected drugs)
footprints (of a suspect at a crime scene)
linear mark; abrasion; scratch; streak
dripping ink marks; a work of calligraphy being written in bold and vivid strokes
notch; indentation; crena; incisure; foramen
vestigial (rudimentary) organ
creating patterns in human flesh through scarification
stria (carved out by a glacier, etc.)
scar contracture; cicatricial contraction
ejector mark (on a cartridge)
extractor mark (on a cartridge)
glacial striae; glacial striations; glacial grooves