polykaryocyte
/ˌpɒlɪˈkarɪə(ʊ)sʌɪt/(also polycaryocyte) Biology and Medicine
noun
A multinucleated giant cell; (in early use) specifically an osteoclast (now rare ).
Origin
Late 19th century. From poly- + karyo- + -cyte; apparently coined by W. H. Howell.