Ethmograph
/ˈɛθ.mə.ɡræf/noun
An instrument used to measure or record the porosity of a material.
Did you know?Its first element comes from Ancient Greek ēthmos, meaning “sieve,” the same root used in anatomical terms describing the sieve-like ethmoid bone of the skull.
Etymological Timeline
Ancient Greek
Greek
ἠθμός (ēthmos)
“A sieve or strainer; something perforated for separating substances.”
Late Greek / Scientific Greek
Greek
ἠθμο- (ēthmo-)
“A combining form meaning “sieve-like” or relating to a sieve.”
19th Century
Scientific English
ethmo-
“A technical combining form used in scientific vocabulary for sieve-like structures or porosity.”
19th Century
English
ethmograph
“An instrument for recording or measuring the porosity of a substance.”
Modern English
English
ethmograph
“A specialized device associated with measuring or recording porosity.”
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