n.
Pronunciation: ˌ yü-d ē - ' ä-m ə -t ə r
Function: noun
Etymology: modification of Italian eudiometro, from Greek eudia fair weather (fr. eu- + -dia weatherakin to Latin dies day) + Italian -metro -meter, from Greek metron measure
Date: 1777
: an instrument for the volumetric measurement and analysis of gases
– eu · dio · met · ric \ ˌ yü-d ē - ə - ' me-trik \ adjective
– eu · dio · met · ri · cal · ly \ -tri-k( ə -)l ē \ adverb