noun
mass nounBotanyThe vascular tissue in plants which conducts sugars and other metabolic products downwards from the leaves.
‘The conducting tissues within the vascular bundles are the xylem and phloem.’- ‘For the stem, the outermost green tissue, including both phloem and cambium were estimated.’
- ‘Root tissue samples are hereafter referred to as periderm, phloem and xylem.’
- ‘Subsequently, this cambium produces both wound xylem and wound phloem and thus contributes to further thickening.’
- ‘Formation of phloem and early xylem was directly related to fruitlet size.’
Origin
Late 19th century from Greek phloos ‘bark’ + the passive suffix -ēma.
Are You Learning English? Here Are Our Top English Tips