hemidactyl

from The Century Dictionary.

• In zoology, having an oval disk at the base of the toes, as some saurians; specifically, pertaining to or having the characters of the genus Hemidactylus.
• noun A gecko of the genus Hemidactylus.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) Any species of Old World geckoes of the genus Hemidactylus. The hemidactyls have dilated toes, with two rows of plates beneath.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun zoology Any species of Old World geckos of the genus Hemidactylus.