The residue left by a person's finger that can be made visible by a process such as powder dusting; a latent fingerprint.
"The detective carefully brushed black powder over the table to reveal the latent print left behind by the suspect."
potentially existing but not presently evident or realized
"a latent fingerprint"
"latent talent"
Existing or present but concealed or inactive.
"The new employee showed latent talent for coding, even though he never mentioned it during interviews."