outlead
An electrical lead for outward-going current.
A thermocouple at the outlead of the photocathode just near the envelope of the photomultiplier measured the temperature of 100 ° K about 30 min after starting to cool it.
Where it comes from
From Middle English outleden (“to lead out”), from Old English ūtlǣdan (“to lead or bring out”), from ūt- (“out”) + lǣdan (“to lead”). Equivalent to out- + lead.
Adapted from the Wiktionary entry outlead (CC BY-SA 4.0).