Definition of phloem
: a complex tissue in the vascular system of higher plants that consists mainly of sieve tubes and elongated parenchyma cells usually with fibers and that functions in translocation and in support and storage — compare xylem
Origin and Etymology of phloem
German, from Greek phloios, phloos bark; perhaps akin to Greek phlein to teem, abound, phlyein, phlyzein to boil over — more at fluid
First Known Use: 1872
Seen and Heard
What made you want to look up phloem? Please tell us where you read or heard it (including the quote, if possible).