basalt
🇺🇸
/bəˈsɔːlt/
🇬🇧
/ˈbæsɔːlt/
noun
R
A dark-colored, fine-grained rock formed from the slow cooling of lava or magma.
The cliffs were made of solid basalt, which had cooled and hardened over millions of years.
translation
A dark-colored, fine-grained rock formed from the slow cooling of lava or magma.
Word Forms
Plural
basalts