Having or characterized by six fingers, toes, or digits on a limb or appendage.
From Greek 'hex-' (six) + 'daktylos' (finger) + '-ous' (having the quality of). This biological term emerged in scientific taxonomy during the 19th century.
The word 'daktylos' comes from the same Greek root as 'pterodactyl' (wing-finger), the famous prehistoric flying reptile, showing how anatomists used finger-counting to classify creatures.
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