phocomelia

https://doi.org/10.1351/goldbook.11089

Congenital abnormality in which one or more of the hands or feet is attached to an underdeveloped limb, and therefore too close to the body.

Note: This very rare disorder is associated with prenatal exposure to thalidomide.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 792 [Terms] [Paper]