Definition of Pointolite in English:

Pointolite

Pronunciation /ˈpɔɪntəlʌɪt/

noun

  • A type of arc lamp designed to give a small but bright source of light (especially for use in projection equipment), the illumination being provided by the incandescence of a small knob of tungsten.

    A trademark in the United Kingdom.

Origin

Early 20th century; earliest use found in Illuminating Engineer. From point + o', variant of of + lite.