Wordnet 3.0
NOUN (1)
1.
small beltlike zone;
[syn: zonule, zonula]
The Collaborative International Dictionary of English v.0.48:
Zonule \Zon"ule\, n.
A little zone, or girdle.
[1913 Webster]
WordNet (r) 3.0 (2006):
zonule
n 1: small beltlike zone [syn: zonule, zonula]