 [moth]
[moth]  Hydria is a genus of moth in the family Geometridae. It is often considered a synonym of Rheumaptera. ...
Found on 
http://en.wikipedia.org/wiki/Hydria_(moth)

• (n.) A water jar; esp., one with a large rounded body, a small neck, and three handles. Some of the most beautiful Greek vases are of this form.
Found on 
http://thinkexist.com/dictionary/meaning/hydria/

large water vessel in Greek pottery of the Archaic period (c. 750–c. 480 ) and the Classical period (c. 480–c. 330 ). It is found in both the ... [1 related articles]
Found on 
http://www.britannica.com/eb/a-z/h/88
 Hy'dri·a  noun
Hy'dri·a  noun [ Latin , from Greek ....] 
 (Gr. Antiq.) A water jar; esp., one with a large rounded body, a small neck, and three handles. Some of the most beautiful Greek vases are of this form. 
Found on 
http://www.encyclo.co.uk/webster/H/75
  No exact match found.