from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To sing (a note or song, for example) with trills, runs, or other melodic embellishments.
- intransitive v. To sing with trills, runs, or quavers.
- intransitive v. To be sounded in a trilling or quavering manner.
- n. The act or an instance of singing with trills, runs, or quavers.
- n. An abscessed boillike swelling on the back of cattle, deer, and certain other animals, caused by the larva of a warble fly.
- n. The warble fly, especially in its larval stage.
- n. A hard lump of tissue on a riding horse's back caused by rubbing of the saddle.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to modulate a tone's frequency
- v. to sing like a bird, especially with trills.
- n. a lesion under the skin of cattle, caused by the larva of a bot fly of genus Hypoderma.
- n. In naval mine warfare, the process of varying the frequency of sound produced by a narrow band noisemaker to ensure that the frequency to which the mine will respond is covered.
from the GNU version of the Collaborative International Dictionary of English
- n. A small, hard tumor which is produced on the back of a horse by the heat or pressure of the saddle in traveling.
- n. A small tumor produced by the larvæ of the gadfly in the backs of horses, cattle, etc. Called also warblet, warbeetle, warnles.
- n. See Wormil.
- transitive v. To sing in a trilling, quavering, or vibratory manner; to modulate with turns or variations; to trill.
- transitive v. To utter musically; to modulate; to carol.
- transitive v. To cause to quaver or vibrate.
- intransitive v. To be quavered or modulated; to be uttered melodiously.
- intransitive v. To sing in a trilling manner, or with many turns and variations.
- intransitive v. To sing with sudden changes from chest to head tones; to yodel.
- n. A quavering modulation of the voice; a musical trill; a song.
from The Century Dictionary and Cyclopedia
- To sing with trills and quavering, or melodious turns, as a bird; carol or sing with sweetly trilling notes.
- To sound vibratingly, or with free, smooth, and rapid modulations of pitch; quaver.
- To yodel.
- To sing or utter with quavering trills or turns: as, to warble a song.
- To describe or celebrate in song.
- n. A strain of clear, rapidly uttered, gliding tones; a trilling, flexible melody; a carol; a song; any soft sweet flow of melodious sounds.
- In falconry, to cross the wings upon the back.
- n. A small, hard swelling on the back of a horse, produced by the galling of the saddle.
- n. A tumor on the back of cattle or doer, produced by the larva of a bot-fly or gadfly.
- n. An insect or its larva which produces warbles. Also warbeetle. Compare wabble.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. sing by changing register; sing by yodeling
- n. a lumpy abscess under the hide of domestic mammals caused by larvae of a botfly or warble fly
- v. sing or play with trills, alternating with the half note above or below
Middle English werbelen, from Old North French werbler, of Germanic origin.
Probably of Scandinavian origin; akin to obsolete Swedish varbulde.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English werble, (at least for the noun) from Frankish werbel (mole cricket), cognate to Walloon waerbea. (Wiktionary)