extrude

Verb

extrude (third-person singular simple present extrudes, present participle extruding, simple past and past participle extruded)

1. To push or thrust out.
   • It is theorized that when the surface velocity is below certain minimum values the material at the interface between workpieces WP-1 and WP-2 rolls up and extrudes from the interface in the form of long twisted cylindrical projections which are sometimes referred to as "dingle-berries."1967, M.R. Calton, Welding of Dispersion-Strengthened Alloys, US Patent 3477117, page 6
   • Fire salamanders, which are common on forested hillsides in southern and central Europe, extrude secretions onto their skin containing a neurotoxic alkaloid, Samandarin, when they think they are under attack.2012, Caspar Henderson, The Book of Barely Imagined Beings, Granta Books, published 2013, page 6
2. (transitive) To form or shape (a metal, plastic etc.) by forcing it through a die or an opening.
3. (transitive) To expel; to drive off.