English Dictionary

EXTRUSIVE

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 Dictionary entry overview: What does extrusive mean? 

EXTRUSIVE (adjective)
  The adjective EXTRUSIVE has 1 sense:

1. of rock material; forced out while molten through cracks in the earth's surfaceplay

  Familiarity information: EXTRUSIVE used as an adjective is very rare.


 Dictionary entry details 


EXTRUSIVE (adjective)


Sense 1

Meaning:

Of rock material; forced out while molten through cracks in the earth's surface

Similar:

volcanic (igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt)

Domain category:

geology (a science that deals with the history of the earth as recorded in rocks)

Antonym:

intrusive (of rock material; forced while molten into cracks between layers of other rock)

Derivation:

extrude (form or shape by forcing through an opening)


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