igneous

[ ig-nee-uh s ]
/ ˈɪg ni əs /

adjective

Geology. produced under conditions involving intense heat, as rocks of volcanic origin or rocks crystallized from molten magma.
of, relating to, or characteristic of fire.

Origin of igneous

1655–65; < Latin igneus, equivalent to ign(is) fire + -eus -eous

OTHER WORDS FROM igneous

non·ig·ne·ous, adjective

Example sentences from the Web for igneous

British Dictionary definitions for igneous

igneous
/ (ˈɪɡnɪəs) /

adjective

(of rocks) derived by solidification of magma or molten lava emplaced on or below the earth's surface Compare sedimentary, metamorphic (def. 2)
of or relating to fire

Word Origin for igneous

C17: from Latin igneus fiery, from ignis fire

Scientific definitions for igneous

igneous
[ ĭgnē-əs ]

Relating to rocks or minerals formed by the cooling and hardening of magma or molten lava. Basalt and granite are examples of igneous rocks.
Relating to the processes, such as volcanism, by which such rocks and minerals form.