Tra từ pearly-shelled mussel - Từ điển WordNet v3.1

Từ điển WordNet v3.1 - WordNet Dictionary

pearly-shelled mussel

noun

the pearly lining of the dark shells is a source of mother-of-pearl
• Hypernyms:
freshwater mussel, freshwater clam
• Member Holonyms:
Unio, genus Unio