megadactyly

synonym: macrodactylia
https://doi.org/10.1351/goldbook.10927
Disorder characterized by an abnormally large fingers and (or) toes.
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 776 (https://doi.org/10.1515/pac-2015-1202)