extrusion

ex·tru·sion  (k-strzhn)

n.

1. The act or process of pushing or thrusting out.

2. The act or process of shaping by forcing through a die.

3. An object or material produced by extruding.

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[Medieval Latin extrsi, extrsin-, from Latin extrsus, past participle of extrdere, to thrust out; see extrude.]

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extrusion  (k-strzhn)

1. The emission of lava onto the surface of the Earth. Rocks that form from the cooling of lava are generally fine-grained (because they cool quickly, before large crystals can grow) and are called extrusive rocks. Compare intrusion.

2. The process of making a shaped object, such as a rod or tube, by forcing a material into a mold.

Thesaurus

Noun	1.	extrusion - something that bulges out or is protuberant or projects from its surroundings; "the gun in his pocket made an obvious bulge"; "the hump of a camel"; "he stood on the rocky prominence"; "the occipital protuberance was well developed"; "the bony excrescence between its horns" excrescence, gibbosity, gibbousness, hump, jut, bulge, protrusion, protuberance, swelling, bump, prominence frontal eminence - either prominence of the frontal bone above each orbit occipital protuberance - prominence on the outer surface of the occipital bone belly - a part that bulges deeply; "the belly of a sail" caput - a headlike protuberance on an organ or structure; "the caput humeri is the head of the humerus which fits into a cavity in the scapula" mogul - a bump on a ski slope nub, nubble - a small lump or protuberance snag - a sharp protuberance wart - any small rounded protuberance (as on certain plants or animals) projection - any solid convex shape that juts out from something
	2.	extrusion - squeezing out by applying pressure; "an unexpected extrusion of toothpaste from the bottom of the tube"; "the expulsion of pus from the pimple" expulsion squeeze, squeezing - the act of gripping and pressing firmly; "he gave her cheek a playful squeeze"