udometer vs pluviometer

udometer and pluviometer both are nouns.

Word	Noun	Adjective	Verb	Adverb
udometer	Yes	No	No	No
pluviometer	Yes	No	No	No

As nouns, udometer and pluviometer are synonyms defined as:

udometer and pluviometer: gauge consisting of an instrument to measure the quantity of precipitation

Other synonyms of udometer include rain gage, rain gauge.

udometer (noun)	pluviometer (noun)
gauge consisting of an instrument to measure the quantity of precipitation	gauge consisting of an instrument to measure the quantity of precipitation