You searched for: “extrusion
extrusion (ik STROO zhuhn) (s) (noun), extrusions (pl)
1. Squeezing out by applying pressure: There was an unexpected extrusion of toothpaste from the bottom of the tube.

Grace turned a bottle upside down and suddenly an extrusion of ketchup spilled out onto her plate.

2. Something that bulges out, is protuberant, or projects from a form: Little Timmy wondered about the extrusion of his mother’s tummy; so, she told him that she was pregnant and was expecting a baby girl!
3. Something formed by forcing semisoft material through a specially shaped mold or nozzle: An extrusion takes place when a partly finished length of metal is thrust through a die to create a metal object; such as, a rod or a pipe.
4. An igneous rock formed by the emission of molten material or magma through cracks in the earth's surface where it forms a lava flow and solidified igneous rock: At the museum of natural history, the group of students were shown pieces of extrusions which exist in certain outer layers of the earth.
This entry is located in the following units: -sion, -sions (page 5) trud-, -trude, trus-, -trusion (page 1)