Ectocyst

Ec´to`cyst

(Zool.) The outside covering of the Bryozoa.

[′ek·tə‚sist] (invertebrate zoology) The outer layer of the wall of a zooecium. (invertebrate zoology) epicyst

(ek'tō-sist), The outer layer of a hydatid cyst. [ecto- + G. kystis, bladder]

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