They are referring to types of finger prints, generally you either have whirls or arches and loops
fingerprints
There is three types of fingerprints. Loops,Whorls,And Arches. Loops-30% Whorls-65% Arches-5%
Loops, arches, and whorls
Whorls, Loops and Arches.
arches, loops and whorls
Finger prints ! BBY
Whorls, loops, and arches are patterns found in fingerprint analysis. Whorls are circular or spiral patterns, loops have a ridge that enters on one side and exits on the same side, and arches form a wave-like pattern. These characteristics help classify and identify fingerprints for forensic purposes.
There are loops, arches, and swirls
Finger prints ! BBY
Loops, whorls and arches.
Whorls-65% Loops-30% Arches-5%
Loops, whorls and arches. And each of those have sub-categories: ulnar and radial loops double-loop whorls, central-pocket whorls, plain whorls, accidental whorls plain and tented arches