An inclusion that is not composed of a metal; often refers to impurities in materials.

धातुई नहीं होने वाला समावेश

English Usage: The steel showed nonmetallic inclusions, which affected its strength.

Hindi Usage: स्टील में धातुई नहीं होने वाले समावेश दिखे, जिसने इसकी ताकत पर असर डाला।