The story
From immuno- + electrochemiluminescence.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A laboratory analytical technique in which a target substance is detected or quantified by means of an immunoassay that uses electrochemically triggered chemiluminescent reactions to produce a measurable light signal proportional to the amount of the target. Full definition →
From immuno- + electrochemiluminescence.
Etymology from Wiktionary, CC BY-SA 4.0.