sieve–tube element

noun
variants: or

sieve–tube member

Definition of sieve–tube element

  1. :  a thin-walled elongated living cell that has no nucleus at maturity, is continuous with other similar cells by protoplasmic strands which pass through the perforations of specialized sieve plates, probably functions primarily in the translocation of organic solutes, and is the basic element of the sieve tube — compare sieve cell

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