luminIferous

[Latin lumen (gen it. luminis )=light; fero =to bring, to produce, and Eng. adj. suff. -ous.] 1. Producing or yielding light. "The best po ible reasons for rejecting the idea of luminiferous particles."- Tyndall : Frag. of Science, ch. i., p. 3. 2. Serving as a medium for the transmi ion of light; as, the luminiferous ether. lu-min-os-I-ty, s . [As if from a Lat. luminosi tas , from luminosus luminous (q. v.).] The same as LUMINOUSNESS (q. v.). "These must give the earth a certain appearance of luminosity to an inhabitant of the moon." -Poe: Hans Pfall . lû-min-ons, a . [Lat. luminosus , from lumen (gen it. luminis )=light; Fr. lumineux ; Sp., Port. & Ital. luminoso .] 1. Shining; emitting light, whether original or reflected. Long fellow: To A Child. "A luminous circle, faint and dim." Certain plants and animals are luminous. [PHOSPHORESCENCE.] 2. Bright, brilliant. "A desert land, where the mountains Lift, through perpetual snows, their lofty and lum in Long fellow: Evangeline, ii. 4. 3. Enlightened; made bright. ous heads.' IMG:content-0765.png:[blocks in formation] Elect.: A Leyden-jar having the outer side coated with varnish, strewed over with metallic powder, and the upper part with a hooked piece of metal terminated in a knob, the lower part with a strip of tin connecting it with the ground. If suspended to an electrical machine and the later put in action, large and brilliant sparks will be found outside the jar, illuminating it all around.