Hyetology

Hy`e·tol'o·gy noun [ Greek ... + rain -logy .] The science which treats of the precipitation of rain, snow, etc. -- Hy`e*to*log'ic*al adjective
Found on http://www.encyclo.co.uk/webster/H/78

Hyetology

• (n.) The science which treats of the precipitation of rain, snow, etc.
Found on http://thinkexist.com/dictionary/meaning/hyetology/

hyetology

science of rainfall
Found on http://phrontistery.info/h.html
No exact match found