elf definition by Webster's New World
- Folklore a tiny, often prankish being in human form, exercising magic powers and haunting woods and hills; sprite
- a small child or being, esp. a mischievous one
Origin: Middle English ; from Old English ælf, akin to Old High German alb (Ger, nightmare), probably ; from Indo-European base an unverified form albho-, white from source Classical Latin albus, white: probably basic sense “whitish figure” (in the mist)
- elflike adjective
elf definition by American Heritage Dictionary
noun pl. elves elves
- A small, often mischievous creature considered to have magical powers.
- a. A lively, mischievous child.b. A usually sprightly or mischievous or sometimes spiteful person.
Origin: Middle English, from Old English ǽlf; see albho- in Indo-European roots.
elf - Computer Definition
ELF radio has a frequency of 30
(Extremely Low Frequency) Electromagnetic radiation in the 30 to 300 Hz range. Electric power lines and electrical appliances emit radiation in this range. See low radiation.