1. relating to or formed by magma
Usage: geological

Examples

• The magmatic rocks formed deep beneath the Earth’s surface.
• Scientists studied the magmatic processes that created the mountain range.
• The magmatic intrusion cooled slowly over millions of years.
• Magmatic activity increased before the volcanic eruption.
• The geologist identified several magmatic minerals in the sample.
• Magmatic differentiation explains the variety of igneous rock types.