1) Oncosphere 
The motile six-hooked first-stage larva of cyclophyllidean cestodes; it emerges from the egg and actively claws its way through the intermediate host's intestine prior to development into the next larval stage; e.g., the hexacanth of Taenia saginata, which penetrates the intestine of a cow that ingested the egg, then forms a cysticercus in the musc...
Oncosphere; a six-hooked larva hatching from the egg of a eucestode.
Type: Term Pronunciation: hek′să-kanth Definitions: 1. The motile six-hooked first-stage larva of cyclophyllidean cestodes; it emerges from the egg and actively claws its way through the intermediate host's intestine before development into the next larval stage; the hexacanth of Taenia saginata, which penetrates the intestine of a cow t...
hexacanth Having ten spines.