| English Dictionary |
EXTRUSIVE
| Pronunciation (US): |  | (GB): | |
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 surface
Familiarity information: EXTRUSIVE used as an adjective is very rare.
Dictionary entry details
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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