n. A manufacturing process where a billet of material is pushed and/or drawn through a die to create a shaped rod, rail or pipe.
n. An item formed by the process of extrusion.
the GNU version of the Collaborative International Dictionary of English
n. The act of thrusting or pushing out; a driving out; expulsion.
The Century Dictionary and Cyclopedia
n. The act of extruding, in either use; a thrusting or driving out; expulsion.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. something that bulges out or is protuberant or projects from its surroundings
n. squeezing out by applying pressure
Word Usage
"The disproportion is so great between the two cells, that the phenomenon does not at first suggest the idea of cell division, and it is usually described as the extrusion of the first polar body."