A funnel is a cylindrical tube, often with a wide end and a narrow end.
Not sure what you mean by a funnel tornado. If you are referring to the Seymour, Texas tornado of April 10, 1979, it had a well-defined funnel and it was funnel-shaped. However, it did touch down so it was not merely a funnel cloud.
A funnel cloud may be called a condensation funnel or simply a funnel.
A funnel is traditionally used.
it is where you separate a solid from a liquid using a funnel & filter paper
The inventor of the funnel is Antonio Berlese, an Italian entomologist. The funnel was later modified by Albert Tullgren, and is sometimes called the Tullgren funnel or the Berlese-Tullgren funnel.
a long stemd funnel is a thistle tube funnel
Funnel-shaped
It is a funnel which seeds are put in
It is a funnel which seeds are put in
Usually the stronger the tornado the larger the funnel but this is not always the case.
In a modified separating funnel the lighter liquid is extracted at the top of the funnel.
In a modified separating funnel the lighter liquid is extracted at the top of the funnel.