Infrasound vs Elf - What's the difference?
As a noun infrasound
is (physics) sound waves having frequency below the human audible range (below about 20 hz).
As an initialism elf is
(a radical environmentalism group
(physics) Sound waves having frequency below the human audible range (below about 20 Hz).
(Norse mythology) A luminous spirit presiding over nature and fertility and dwelling in the world of (Elfland). Compare angel, nymph, fairy.
Any from a race of mythical, supernatural beings resembling but seen as distinct from human beings. Usually skilled in magic or spellcrafting; sometimes depicted as clashing with dwarves, especially in modern fantasy literature.
(fantasy) Any of the magical, typically forest-guarding races bearing some similarities to the Norse (through Tolkien's Eldar)
A very diminutive person; a dwarf.
- Every elf , and fairy sprite, / Hop as light as bird from brier.
* light elves
* dark elves
* Marshall Jones Company (1930). Mythology of All Races'' Series, Volume 2 ''Eddic , Great Britain: Marshall Jones Company, 1930, pp. 220-221.