a combining form meaning “finger,” “toe,” used in the formation of compound words: dactylomegaly.
Also, dactyl-.

< Greek, combining form representing dáktylos finger, toe

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World English Dictionary
dactylo- or (before a vowel) dactyl-
combining form
finger or toe: dactylogram
[from Greek daktulos finger]
dactyl- or (before a vowel) dactyl-
combining form
[from Greek daktulos finger]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

dactylo- or dactyl-
Digit: dactylomegaly.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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