9 Grammatical Pitfalls


[ik-strood] /ɪkˈstrud/
verb (used with object), extruded, extruding.
to thrust out; force or press out; expel:
to extrude molten rock.
to form (metal, plastic, etc.) with a desired cross section by forcing it through a die.
verb (used without object), extruded, extruding.
to protrude.
to be extruded:
This metal extrudes easily.
Origin of extrude
1560-70; < Latin extrūdere to thrust out, drive out, equivalent to ex- ex-1 + trūdere to thrust, push
Related forms
extruder, noun
[ik-stroo-suh-buh l, -zuh-] /ɪkˈstru sə bəl, -zə-/ (Show IPA),
extrudable, adjective
unextruded, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for extrude
  • As they develop inside your red blood cells, they extrude minute knobs onto the surface of the cells.
  • Meanwhile he is rid of the tube and struggles to extrude vowels and consonants from his larynx.
  • So it is good to paw over my tiresome routines and snap judgments, to extrude doubts and worries and clean out that hog barn.
  • Seismicity and deformation remain unchanged as lava continues to extrude onto the south crater floor.
British Dictionary definitions for extrude


(transitive) to squeeze or force out
(transitive) to produce (moulded sections of plastic, metal, etc) by ejection under pressure through a suitably shaped nozzle or die
(transitive) to chop up or pulverize (an item of food) and re-form it to look like a whole: a factory-made rod of extruded egg
a less common word for protrude
Derived Forms
extruded, adjective
Word Origin
C16: from Latin extrūdere to thrust out, from trūdere to push, thrust
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for extrude

1560s, from Latin extrudere "to thrust out, drive away," from ex- "out" (see ex-) + trudere "to thrust" (see extrusion). Related: Extruded; extruding.

Online Etymology Dictionary, © 2010 Douglas Harper
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extrude in Medicine

extrude ex·trude (ĭk-strōōd')
v. ex·trud·ed, ex·trud·ing, ex·trudes

  1. To thrust, force, or press out.

  2. To protrude or project.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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