Definify.com
Webster 1913 Edition
Cysticule
Cys′ti-cule
(s?s′t?-k?l)
, Noun.
 [Dim. of 
cyst
.] (Anat.) 
An appendage of the vestibular ear sac of fishes. 
Owen.
 Definition 2025
cysticule
cysticule
English
Noun
cysticule (plural cysticules)
-  (anatomy) An appendage of the vestibular ear sac of fishes.
- (Can we find and add a quotation of Owen to this entry?)