stro·bi·la 
(strō-bīlə)
(strō-bīlə)n. pl. stro·bi·lae (-lē)
A part or structure that buds to form a series of segments, especially:
a. The body of a tapeworm behind the scolex, consisting of a series of proglottids.
b. The stack of disklike segments produced by the polyps of certain jellyfishes, which separates into immature medusae.
[New Latin, from Greek strobilē, twisted plug of lint, from strobilos, pine cone; see STROBILUS.]
stro·bilar adj.