seed coat

Từ điển Oxford Learners Wordfinder Dictionary

noun

protective outer layer of seeds of flowering plants
• Syn:
testa, episperm
• Derivationally related forms:
testaceous (for: testa)
• Hypernyms:
reproductive structure
• Part Holonyms:
seed

• Từ đồng nghĩa / Synonyms:
  testa, episperm