12 letters · 21 points in Scrabble
noun a crackling or hissing noise caused by electrical interference
originEtymology tree English atmosphere Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic Old English -as Middle English -es English -s English -ics English atmospherics From atmosphere + -ics.
Etymology from Wiktionary, CC BY-SA 3.0