|the Lion, a zodiacal constellation between Virgo and Cancer, containing the bright star Regulus|
|the magnitude or brightness of a star as it appears to an observer on the earth|
|1.||the act of scintillating|
|2.||a spark or flash|
|3.||the twinkling of stars or radio sources, caused by rapid changes in the density of the earth's atmosphere, the interplanetary medium, or the interstellar medium, producing uneven refraction of starlight|
|4.||physics a flash of light produced when a material scintillates|
scintillation scin·til·la·tion (sĭn'tl-ā'shən)
A spark; a flash.
A flash of light produced in a phosphor by absorption of an ionizing particle or photon.