"sieve cell." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/sieve-cell>.
sieve cell. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/sieve-cell
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.