funnel tube

noun

: a long usually glass tube that has a conical or bulging thistle-shaped top and sometimes a loop with or without bulbs serving as a safety trap and that is used especially in the chemical laboratory for pouring liquid into an apparatus

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now