01 n. A dark, crystalline, igneous rock, chiefly pyroxene with labradorite.
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1.
A dark, crystalline, igneous rock, chiefly pyroxene with labradorite.(Petrography)
Entry
1 sense
Webster, 1913
Dolerite
· Dol·er·ite
· IPA /ˈdɑl.əˌɹaɪt/