sieve cell

noun Botany.

an elongated cell whose walls contain perforations (sieve pores) that are arranged in circumscribed areas (sieve plates) and that afford communication with similar adjacent cells.

Nearby words

sierra vista, sies, siesta, sieva bean, sieve, sieve cell, sieve graft, sieve of eratosthenes, sieve tube, sieve-tube element, sievers

Origin of sieve cell

First recorded in 1870–75

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for sieve cell

sieve cell

[ sĭv ]

An elongated, food-conducting cell in phloem characteristic of gymnosperms. Sieve cells have pores through which nutrients flow from cell to cell, but they have no sieve plates like the more specialized sieve-tube elements of angiosperms. Compare sieve-tube element.