DuckCorp

DuckCorp Dico

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Found one definition

  1.                 From The Jargon File (version 4.4.7, 29 Dec 2003):
                    

    LER /L·E·R/

    n.

    1. [TMRC, from ‘Light-Emitting Diode’] A light-emitting resistor (that is, one in the process of burning up). Ohm's law was broken. See also SED.

    2. An incandescent light bulb (the filament emits light because it's resistively heated).