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pentadactyl

   Also found in: Medical, Encyclopedia, Wikipedia 0.02 sec.
pen·ta·dac·tyl  (pnt-dktl) also pen·ta·dac·ty·late (-t-lt, -lt)
adj.
Having five fingers or toes on each hand or foot.

[Latin pentadactylus, from Greek pentadaktulos : penta-, penta- + daktulos, finger.]

penta·dactyl·ism n.

pentadactyl [ˌpɛntəˈdæktɪl]
adj
(Life Sciences & Allied Applications / Zoology) (of the limbs of amphibians, reptiles, birds, and mammals) consisting of an upper arm or thigh, a forearm or shank, and a hand or foot bearing five digits


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Another thing that he'll need to explain is the Pentadactyl limb, the ancestral terrestrial vertebrates' limb plan, which is found in all classes of tetrapods (vertebrates with four feet, legs, or leg-like appendages) from mammals to amphibians.
Note that PENTADACTYL below and its 12-letter variant spelling above result from shiftgramming two words with the same shift; however, these latter two words form a well-mixed transdeletion, so the 11-letter example is not a trivial variant of the 12-letter example.
Paleontologists have traditionally held that all land vertebrates followed a five-digit or pentadactyl pattern.
 
 
 
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