Igneous rock
igneous rock [(ig-nee-uhs)]
Rocks formed by the cooling and solidifying of molten materials. Igneous rocks can form beneath the Earth’s surface, or at its surface, as lava.
Note: Granite, solid volcanic lava, and basalt are examples of igneous rock.
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[ig-nes-uh nt] /ɪgˈnɛs ənt/ adjective 1. emitting sparks of fire, as certain stones when struck with steel. 2. bursting into flame. noun 3. an ignescent substance. /ɪɡˈnɛsənt/ adjective 1. giving off sparks when struck, as a flint 2. capable of bursting into flame noun 3. an ignescent substance
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- Ignimbrite
[ig-nim-brahyt] /ˈɪg nɪmˌbraɪt/ noun, Petrology. 1. a fine-grained volcanic rock consisting mainly of welded shards of feldspar and quartz. /ˈɪɡnɪmˌbraɪt/ noun 1. a rock formed by the deposition at high temperature and the consolidation of a nuée ardente or other type of ash flow, being a complicated mixture of volcanic materials welded together by heat, […]
- Ignis-fatuus
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- Ignitability
[ig-nahyt] /ɪgˈnaɪt/ verb (used with object), ignited, igniting. 1. to set on fire; kindle. 2. Chemistry. to heat intensely; roast. verb (used without object), ignited, igniting. 3. to take fire; begin to burn. /ɪɡˈnaɪt/ verb 1. to catch fire or set fire to; burn or cause to burn 2. (transitive) (chem) to heat strongly 3. […]