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sieve tube

noun

, Botany.
  1. a vertical series of sieve cells in the phloem, specialized for the conduction of food materials.
  2. a single sieve cell.


sieve tube

noun

  1. botany an element of phloem tissue consisting of a longitudinal row of thin-walled elongated cells with perforations in their connecting walls through which food materials pass
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of sieve tube1

First recorded in 1870–75

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sievertsieve-tube element