• WordNet 3.6
    • adj extrusive of rock material; forced out while molten through cracks in the earth's surface
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Webster's Revised Unabridged Dictionary
    • a Extrusive (Geol) Forced out at the surface; as, extrusive rocks; -- contrasted with intrusive.
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Century Dictionary and Cyclopedia
    • extrusive Capable of being extruded or thrust out; that tends or serves to extrude or thrust out or forth; specifically, in petrography, erupted or extruded: applied to igneous rocks. Same as effusive.
    • n extrusive That which is extruded; specifically, in petrography, same as effusive (which see): contrasted with intrusive.
    • ***


Webster's Revised Unabridged Dictionary
See Extrude


In literature:

Salmuth, Verduc, and others mention extrusion of the eyeball from the socket, due to excessive coughing.
"Anomalies and Curiosities of Medicine" by George M. Gould
He slipped it into the breast-pocket of his coat, almost heedless of the slight extrusion it made there.
"Zuleika Dobson" by Max Beerbohm
In the Republics of France and of America the President is of an extrusive kind.
"Yet Again" by Max Beerbohm
Evagination: an extrusion formed by eversion or turning inside out.
"Explanation of Terms Used in Entomology" by John. B. Smith
The first punishment for dissent less than death is extrusion from the society.
"Folkways" by William Graham Sumner
Deposits formed at shallow depths are related to extrusive rocks and to intrusives near the surface.
"The Economic Aspect of Geology" by C. K. Leith
After the extrusion of the polar bodies there are 24 chromosomes in the egg.
"A Critique of the Theory of Evolution" by Thomas Hunt Morgan
The same cause produces also premature extrusion of ova.
"Degeneracy" by Eugene S. Talbot
His extrusion seemed to be a punishment for not being rich.
"What Will People Say?" by Rupert Hughes
Such an extrusion of the foetus is called a complete tubal abortion.
"Essays In Pastoral Medicine" by Austin ÓMalley

In news:

EXTRUSION DIES INDUSTRIES (EDI), Chippewa Falls, WI, USA — The company has appointed Ronald J Allbritton technical service and sales specialist.
Loop gain in aluminum extrusion processes.
Called Vertex and suited to all types of extrusion , this approach reportedly results in faster response and better control.
However, they also can provide the same benefits to extrusion processors.
PAWCATUCK, CT Davis-Standard will host its workshop on "The Basics of Plastics Extrusion " October 16 and 17, 2012, at company headquarters in Pawcatuck.
MuCell Extrusion LLC, Woburn, Mass.
Quality Lineals expanding extrusion operations.
Think your downstream spray-type extrusion cooling lines might be longer than you need.
Packaged goods marketers seeking a more exciting labeling concept can take heed of Applied Extrusion Technologies' new Mirage holographic label films.
Engineering R&D: Supercritical CO2 Extrusion Opens New Product Opportunities.
Supercritical fluid extrusion (SCFX) technology, first reported in 1992 by Syed S.H.
Experimental Extrusion of Fructose Polymer .
Coil and extrusion coating PPG products in North America to cost customers 8-12 percent more.
A survey of presses for hydroforming tubes, extrusions.
Product Categories of Proven Technology Inc. Extrusion Blow Molding Machines.

In science:

KyungPook National University in Korea is developing the extrusion method to make very low cost scintillator strips.
Calorimetry for Lepton Collider Experiments - CALICE results and activities
The strips of equilateral triangular cross section are made by extrusion of polystyrene plastic [], which is doped with % p-terphenyl and  ppm diphenyl stilbene, similar to the Bicron [] BC- scintillator.
Cosmic ray tests of the D0 preshower detector
The strips were produced by the extrusion technique in Kharkov.
Particle Detector R&D
In the final ALFA setup the ODs will be lo cated in special extrusions of the Roman Pots which will gradually overlap when the upper and lower pots are moved towards the beam axis.
Hadron beam test of a scintillating fibre tracker system for elastic scattering and luminosity measurement in ATLAS
It is manufactured using an extrusion method, which allows an outer light shield of TiO2 and the central hole (for the WLS) to be incorporated directly into the long scintillator strips.
CALICE Report to the Calorimeter R&D Review Panel