dactylo-, dactyl-, dactylio-, -dactyl, -dactyla, -dactylia, -dactylic, -dactylism, -dactyloid, -dactylous, -dactyly

(Greek: finger, toe)

syndactylism
A birth defect in which there is partial, or total, webbing connecting two or more fingers or toes.
syndactylous
Fusion or, or webbing, between two or more adjacent fingers or toes.
syndactylus
A fetus or postnatal individual with fused or webbed fingers or toes.
syndactyly
A situation in which two or more digits are fused together.

It occurs normally in some mammals; such as, the siamang (an arboreal black furred gibbon native to the forests of Malaysia and Sumatra). It occurs as a rare abnormality in humans.

synpolydactyly
The hereditary association of polydactyly (extra fingers or toes) and syndactyly (webbed fingers or toes).
teledactyl (s) (noun), teledactyls (pl)
1. An appliance used to pick up objects from the floor without stooping; normally used by those with spinal ailments.
2. In computer technology, a specialized voice recognition system designed to produce text from human speech:The teledactyl can be used in connection with telephone lines, allowing voice-operated directory assistance, voice-operated remote control, and dictation over the internet.
tetradactyl
Having only four fingers or toes on a hand or foot.
tetradactylous
1. Having four digits or claws on each extremity.
2. Having, or characterized by, four digits on a foot or hand.
tetradactyly
1. Having four digits on a limb, as with amphibians and many birds.
2. People having just four digits on a hand or foot.
tridactyl, tridactyle, tridactylous
1. Having three toes, claws, or similar parts on each limb.
2. Having three digits, either fingers or toes; also, tridigitate.
tridactyly
Having three digits on a limb, as with some birds and ancestors of the horse; such as, Protohippus and Hipparion.
unidactyl
With one digit, or only one claw.
zygodactyl, zygodactylous (adjective) (not comparable)
A description of the feet of birds in which the second and third toes face forward and the first and fourth toes face backward: While walking in the woods, Samantha saw a cuckoo that had zygodactyl digits on its feet, like the photo in her biology book.
zygodactylism (s) (noun) (no pl)
1. A condition of certain climbing birds, having the toes of each foot arranged in pairs, with two toes in front and two behind: After reading about zygodactylism in her biology book, Jane found out that woodpeckers, owls and most parrots have such toe arrangements.
2. This term is sometimes used to designate simple syndactyly (webbing between adjacent digits so they are more or less completely attached), as distinguished from syndactyly in which there is bony fusion between the phalanges of the digits involved and usually occurring in the hand between the third and fourth digits and in the foot between the fourth and fifth.
zygodactyly (s) (noun) (no pl)
An arrangement of digits in birds, with two toes facing forward (digits two and three) and two back (digits one and four): Zygodactyly is most common in arboreal species, particularly those that climb tree trunks or clamber through foliage.

Zygodactyly occurs with woodpeckers, flickers, nuthatches, and parrots.

Cross references directly, or indirectly, involving the "toes" and "fingers": digit-; hallu-; phalang-.