define whorl
whorl noun [C]. âº a âcircular âpattern of âlines, with the âsmallest âcircle in the âmiddle, âsurrounded by other âcircles, each one âwider and âlarger than the âprevious one. (Definition of whorl from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press).
A whorl is a type of spiral or circular pattern. Other meanings of whorl include: 1  Whorl (botany) , used to describe the attachment of sepals, petals, leaves, or branches at a single point. 2  Whorl (biology) , used to describe the structures of organs and used in the aid of identification. 3  Whorl (fingerprint) , a type of fingerprint pattern.