plain whorl

plain whorl

[′plān ‚wərl]
(forensic science)
A whorl fingerprint pattern that has two deltas and at least one ridge making a complete circuit, which may be spiral, oval, circular, or any variant of a circle. An imaginary line drawn between the two deltas must touch or cross at least one of the recurving ridges within the inner pattern area.
References in periodicals archive ?
The study conducted by Khadri Sayed Yunus, Goudar ES and Khadri Sayeda Yasmeen [11] showed that the predominant pattern among both male and female was ulnar loop pattern (38.42%) in male and (44.56%) in female followed by plain whorl pattern (24.04%) in male and (18.24%) in female, respectively.