Having fused or webbed fingers or toes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for syndactylous
Historical Examples of syndactylous
The feet have two syndactylous toes, less marked in the Wombats than in the Kangaroos and Phalangers.The Cambridge Natural History, Vol X., Mammalia
Frank Evers Beddard