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Any of various aquatic, tongueless, clawed frogs of the genus Xenopus of southern Africa, certain species of which, especially the African clawed frog, are widely used for biological research.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


the African clawed toad that has been used to test for pregnancy in women. Injection of urine from a pregnant woman results in egg-laying in the toad.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Similarly, blocking the cell signaling pathway designated as Hh in the Xenopus frog or in zebrafish, results in two mirror image front halves and suggests that Shh signaling is necessary for patterning the back half.
A much more exhaustive study is also being conducted in Xenopus frogs.
A team of scientists at Dundee University hope their research, using South African Xenopus Frogs, will be a great leap forward in the fight against the deadly disease.

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