from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Between the fingers or toes
from the GNU version of the Collaborative International Dictionary of English
- adj. Between the fingers or toes.
from The Century Dictionary and Cyclopedia
- Situated between digits; connecting fingers or toes one with another. The webbing of a duck's foot is interdigital; so is most of the membrane of a bat's wing.
inter- + digital (Wiktionary)