en optical glass (n, substance)
― IsA ⟶
Weight: 2.0
en glass (n, substance) Source: Open Multilingual WordNet
en optical flint (n, substance)
― IsA ⟶
Weight: 2.0
en optical glass (n, substance) Source: Open Multilingual WordNet
en optical crown (n, substance)
― IsA ⟶
Weight: 2.0
en optical glass (n, substance) Source: Open Multilingual WordNet
en natural glass
― IsA ⟶
Weight: 1.0
en optical glass (n) Source: English Wiktionary
en crown glass
― IsA ⟶
Weight: 1.0
en optical glass (n) Source: English Wiktionary
en flint glass
― IsA ⟶
Weight: 1.0
en optical glass (n) Source: English Wiktionary