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词汇 protophloem
释义

Definition of protophloem in English:

protophloem

noun
Botany
  • The first-formed elements of the primary phloem, the cells of which mature before the elongation of the surrounding plant tissue.

Origin

Late 19th century; earliest use found in Frederic Bower (1855–1948), botanist. After German Protophloëm.

Definition of protophloem in US English:

protophloem

noun
Botany
  • The first-formed elements of the primary phloem, the cells of which mature before the elongation of the surrounding plant tissue.

Origin

Late 19th century; earliest use found in Frederic Bower (1855–1948), botanist. After German Protophloëm.

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