Synonyms: ELF, extremely low frequency
Definition: below 3 kilohertz
Similar words: radio frequency
Definition: an electromagnetic wave frequency between audio and infrared
Synonyms: pixie, pixy, elf, brownie, hob, imp, gremlin
Definition: (folklore) fairies that are somewhat mischievous
Similar words: faerie, faery, fairy, fay, sprite
Definition: a small being, human in form, playful and having magical powers