WordReference Random House Unabridged Dictionary of American English © 2025
Gjal•lar-horn
(yäl′lär hôrn′),USA pronunciation n. [Scand. Myth.]
- Heimdall's horn, used to warn the gods of Ragnarok.
- Old Norse, equivalent. to gjallar, genitive sing of gjǫll noise, din (Compare gjalla to resound loudly, scream; cognate with Old English g(i)ellan to yell) + horn horn