funnel shape

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Noun1.funnel shape - a conical shape with a wider and a narrower opening at the two endsfunnel shape - a conical shape with a wider and a narrower opening at the two ends
cone shape, conoid, cone - a shape whose base is a circle and whose sides taper up to a point
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References in classic literature ?
These hideous beasts dig for themselves vast caverns in the soil, of a funnel shape, and line the sides of them with, rocks, so disposed one upon the other that they fall instantly, when trodden upon by other animals, thus precipitating them into the monster's dens, where their blood is immediately sucked, and their carcasses afterwards hurled contemptuously out to an immense distance from "the caverns of death."'"
Traditionally made from local palms and reeds, fish traps, in different sizes, are deposited in various locations where their clever funnel shape allows fish in but prevents them from escaping.
A team of engineers and doctors at the University of Washington developed a simple smartphone approach for acoustic testing: Cut a piece of paper, fold it into a funnel shape and tape it around the phone's microphone and speakers.
A tornado, sometimes called a whirlwind, is a rapidly rotating column of air in a cylindrical or funnel shape.
It is very interesting to see the detail in the funnel shape of the web and then spend some time, waiting and watching how incredibly fast they are when prey like insects get caught in the web.
* Funnel shape and hydrophobic material minimize residue and maximize sample volume
Storm surges present a very specific type of flood hazard to the east coast of England, mainly because of the semi-enclosed funnel shape, and the shallowness of the North Sea.
The filters have a unique funnel shape for easy pipette loading, and are provided in strips of four.