The story
From haemoglobin + -o- + -meter.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: An apparatus for measuring the amount of haemoglobin in a fluid by comparing it with a solution of known strength and of normal colour Full definition →
From haemoglobin + -o- + -meter.
Etymology from Wiktionary, CC BY-SA 4.0.