| phloem | <plant biology> Tissue forming part of the plant vascular system, responsible for the transport of organic materials, especially sucrose, from the leaves to the rest of the plant. Consists of sieve tubes, companion cells, fibre cells and parenchyma. (31 Dec 1997) |
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Synonyms :
| phloem | (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed |
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