spinnerule
A tiny tube on a spider's spinneret through which silk is extruded. Rare, specialized term used in arachnology.
See also: 糸疣
The mechanism by which silk emerges from a spider's spinnerule is extremely intricate.
Compound of 出 (しゅつ, 'exit') + 糸 (し, 'thread') + 管 (かん, 'tube'). The reading しゅっしかん results from the assimilation of しゅつ + し.