also: ふるいぶ
noun
phloem
Botanical term for the vascular tissue that transports sugars and nutrients in plants.
師部は植物の栄養分を運ぶ組織です。
Phloem is the tissue that transports nutrients in plants.
Xylem; transports water and minerals, contrasting with phloem which transports sugars.
Composed of 師 (し, 'master' or 'teacher') and 部 (ぶ, 'part' or 'section'), likely a calque from Western botanical terminology. The exact derivation is uncertain.