Home › Words › P › pentadactylismpentadactylismpentadactylism means pentadactyly.EtymologyFrom pentadactyl + -ism.nounpentadactylyDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.pentadactylic 85% match — pentadactylous vs pentadactylism →pentadactyly 82% match — The condition of having five digits (fingers or toes) on a limb vs pentadactylism →hexadactylia 79% match — hexadactyly vs pentadactylism →hexadactylic 73% match — hexadactylous vs pentadactylism →quinquedigitate 73% match — Synonym of pentadactyl, having 5 fingers. vs pentadactylism →cheiropterygium 72% match — The typical pentadactyloid limb of the higher vertebrates. vs pentadactylism →hexadactylous 71% match — Having six fingers or toes. vs pentadactylism →tetradactylous 71% match — Having four digits on the foot or hand. vs pentadactylism →