Sieve cells

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Related to Sieve cells: primary phloem, Sieve plates, Companion cells
(Bot.) cribriform cells. See under Cribriform.

See also: Sieve

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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In the inner bark of conifers, densely packed sieve cells with minute pores in their walls pass the nutrients slowly from cell to cell.