phloem

Từ điển WordNet v3.1 - WordNet Dictionary

noun

(botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed;
consists primarily of sieve tubes (Freq. 1)
• Syn:
bast
• Topics:
botany, phytology
• Hypernyms:
vascular tissue
• Part Meronyms:
sieve tube