1. of or relating to a type of igneous rock (diabase) that is fine-grained and dark in color
Usage: geology; technical
2. having two replaceable hydrogen atoms; capable of donating two protons
Usage: chemistry; technical

Examples

• The diabasic rock formation was identified by its dark mineral composition.
• Geologists studied the diabasic intrusions in the mountain range.
• Sulfuric acid is a diabasic acid commonly used in industrial applications.
• The diabasic nature of the compound allows it to form two types of salts.
• Diabasic acids can donate two hydrogen ions in aqueous solution.