sirenomelus

noun
si·​re·​nom·​e·​lus | \ ˌsī-rə-ˈnäm-ə-ləs How to pronounce sirenomelus (audio) \
plural sirenomeli\ -​ˌlī How to pronounce sirenomeli (audio) \

Medical Definition of sirenomelus

: an individual exhibiting sirenomelia