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sieve tube

American

noun

Botany.

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

sieve tube British

noun

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

Etymology

Origin of sieve tube

First recorded in 1870–75

Example Sentences

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See Examples For:

sieve tube

Phloem sap travels through perforations called sieve tube plates.

From Textbooks ● Jun. 9, 2022

J, sieve tube from the underground stem, × 300.

From Elements of Structural and Systematic Botany For High Schools and Elementary College Courses by Douglas Houghton Campbell

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023