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funnel

 
(fŭn'əl) pronunciation
n.
    1. A conical utensil having a small hole or narrow tube at the apex and used to channel the flow of a substance, as into a small-mouthed container.
    2. Something resembling this utensil in shape.
  1. A shaft, flue, or stack for ventilation or the passage of smoke, especially the smokestack of a ship or locomotive.

v., -neled, or -nelled, -nel·ing, or -nel·ling, -nels, or -nels.

v.intr.
  1. To take the shape of a funnel.
  2. To move through or as if through a funnel: tourists funneling slowly through customs.
v.tr.
  1. To cause to take the shape of a funnel.
  2. To cause to move through or as if through a funnel.

[Middle English fonel, from Provençal fonilh, from Late Latin fundibulum, from Latin īnfundibulum, from īnfundere, to pour in. See infuse.]


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v

Definition: channel
Antonyms: scatter, splurge

The safe-approach area centered on the ILS (Instrument Landing System) glide path and normally considered to extend 0.5° above and below and 2° left and right. Aircraft inside the funnel should be able to land.

Picture 1 of funnel



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For a list of words related to funnel, see:

  See crossword solutions for the clue Funnel.
A typical kitchen funnel.
A funnel on a ship, like this one on the Mauretania

A funnel is a pipe with a wide, often conical mouth and a narrow stem. It is used to channel liquid or fine-grained substances into containers with a small opening. Without a funnel, spillage would occur.

Funnels are usually made of stainless steel, aluminium, glass, or plastic. The material used in its construction should be sturdy enough to withstand the weight of the substance being transferred, and it should not react with the substance. For this reason, stainless steel or glass are useful in transferring diesel, while plastic funnels are useful in the kitchen. Sometimes disposable paper funnels are used in cases where it would be difficult to adequately clean the funnel afterward (for example, in adding motor oil to a car). Dropper funnels, also called dropping funnels or tap funnels, have a tap to allow the controlled release of a liquid.

The term funnel is sometimes used to refer to the chimney or smokestack on a steam locomotive and usually used in referring to the same on a ship. There is also a type of spider known as a funnel-web due to its habit of building its web in the shape of a funnel. The term funnel is even applied to other seemingly strange objects like a smoking pipe or even a humble kitchen bin.

Contents

Laboratory funnels

See Funnels (laboratory)

A Büchner funnel with a sintered glass disc

There are many different kinds of funnels that have been adapted for specialized applications in the laboratory. Filter funnels, thistle funnels (shaped like thistle flowers), and dropping funnels have stopcocks which allow the fluids to be added to a flask slowly. For solids, a powder funnel with a wide and short stem is more appropriate as it does not clog easily.

When used with filter paper, filter funnels, Büchner and Hirsch funnels can be used to remove fine particles from a liquid in a process called filtration. For more demanding applications, the filter paper in the latter two may be replaced with a sintered glass frit.

Separatory funnels are used in liquid-liquid extractions.

Construction

Glass is the material of choice for laboratory applications due to its inertness compared with metals or plastics. However, plastic funnels made of nonreactive polyethylene are used for transferring aqueous solutions. Plastic is most often used for powder funnels that do not come into contact with solvent in normal use.

In culture

The inverted funnel is a symbol of madness. It appears in many Medieval depictions of the mad. For example in Hieronymus Bosch's Ship of Fools and Allegory of Gluttony and Lust.

In popular culture, the Tin Woodman in L. Frank Baum's classic novel The Wonderful Wizard of Oz (and in most dramatizations of it) uses an inverted funnel for a hat, though that is never specifically mentioned in the story—it originated in W.W. Denslow's original illustrations for the book.

In the East Coast of the United States, "beer funnel" is another term for "beer bong". "Funneling" a beer involves pouring an entire beer into a funnel attached to a tube, in which a person then consumes the beer via the tube.

See also

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Translations:

Funnel

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Dansk (Danish)
n. - tragt, skorsten
v. intr. - passere gennem en snævring
v. tr. - lede, sluse, kanalisere, forme til en tragt

Nederlands (Dutch)
trechter, schoorsteen, luchtkoker, trechtervormig worden/ maken, door een trechter laten stromen, naar één punt laten gaan

Français (French)
n. - entonnoir, cheminée
v. intr. - s'engouffrer dans/à travers, passer dans/par (liquide)
v. tr. - faire passer qch dans (littér), évacuer, (fig) acheminer, débloquer (des fonds, des crédits)

Deutsch (German)
n. - Schornstein, Trichter
v. - konzentrieren

Ελληνική (Greek)
n. - χοάνη, χωνί, φουγάρο (πλοίου κ.λπ.)
v. - διοχετεύω/-ομαι (μέσω χοάνης)

Italiano (Italian)
ciminiera

Português (Portuguese)
n. - funil (m)
v. - passar por funil

Русский (Russian)
воронка, труба парохода, переливать, просачиваться, вложить

Español (Spanish)
n. - chimenea, embudo
v. intr. - encausarse, concentrarse
v. tr. - encausar, concentrar

Svenska (Swedish)
n. - tratt, skorsten, lufttrumma
v. - koncentrera, kanalisera, samla

中文(简体)(Chinese (Simplified))
漏斗, 烟囱, 漏斗状的东西, 通过, 注入

中文(繁體)(Chinese (Traditional))
n. - 漏斗, 煙囪, 漏斗狀的東西
v. intr. - 通過
v. tr. - 注入

한국어 (Korean)
n. - 깔때기, 굴뚝, 통풍구
v. intr. - 깔때기 모양이 되다, 중심에 모이다
v. tr. - ~을 깔때기 모양으로 하다, ~을 중심으로 모이다

日本語 (Japanese)
n. - じょうご, 煙突, 漏斗
v. - 注ぐ, 通り抜ける

العربيه (Arabic)
‏(الاسم) قمع (فعل) يجعل على شكل قمع‏

עברית (Hebrew)
n. - ‮משפך, ארובה‬
v. intr. - ‮עבר בשטח דמוי משפך‬
v. tr. - ‮הדריך במעבר במשפך‬


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American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
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