Throat pipe

(Anat.) the windpipe, or trachea.

See also: Throat

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The heating block of a 3D printer nozzle device is usually set through throat pipe in the fixed block which is driven by a motor in the guide rail to realize the function of continuous print [1719].
Simplification mainly focuses on the processing of the models of the heating block, nozzle, and throat pipe. Therefore, the fixed block, hex socket screw, and other components are removed.
When the temperature reaches the set temperature, the filament can be fed into the heating block along the throat pipe. Two kinds of filament will be melted at the end of the pipe and mix in the heating block.
Caption: Figure 3: Simplified model of (a) heating block, (b) nozzle, and (c) throat pipe.