-dac·tylsuff. Having digits of a specified number or kind: zygodactyl.[From Greek daktulos, finger, toe.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.dac?tyl (?dæk t?l) n. 1. a prosodic foot of three syllables, one long followed by two short in quantitative meter, or one stressed followed by two unstressed in accentual meter, as in humanly. 2. a finger or toe. [1350?1400; Middle English