= B =
bathtub curve n.
Common term for the curve (resembling an
end-to-end section of one of those claw-footed antique bathtubs)
that describes the expected failure rate of electronics with time:
initially high, dropping to near 0 for most of the system's
lifetime, then rising again as it `tires out'. See also
burn-in period, infant mortality.
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.