rhoptry
Pronunciation: rōp′trē, -trēs
Definition: Electron-dense club-shaped, tubular or saccular organelles, extending back from the anterior end of sporozoites and other stages of certain sporozoans in the subphylum Apicomplexa.
Synonym(s): paired organelles, toxoneme
[G. rhopalon, club]
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Examples: glitazone, GI cocktail, etc.

