hydatid

noun hy·da·tid \ ˈhī-də-təd , -ˌtid \

Definition of hydatid

: the larval cyst of a tapeworm (genus Echinococcus) occurring as a fluid-filled sac containing daughter cysts in which scolices develop

Origin and Etymology of hydatid

Greek hydatid-, hydatis watery cyst, from hydat-, hydōr


Medical Dictionary

hydatid

noun hy·da·tid \ ˈhīd-ə-təd, -ˌtid \

medical Definition of hydatid

1 : the larval cyst of a tapeworm of the genus Echinococcus that usually occurs as a fluid-filled sac containing daughter cysts in which scolices develop but that occasionally forms a proliferating spongy mass which actively metastasizes in the host's tissues called also hydatid cyst; see echinococcus 1
2 a : an abnormal cyst or cystic structure; especially : hydatidiform mole

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