noun. (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes.
- sieve tube
Example sentences of the word phloem
1. Noun, singular or mass
Whitefly feed in plant phloem and remove sap.
Once phloem dies off, it becomes part of the outer bark.
3. Verb, base form
The American elm and some of its cultivars are also susceptible to phloem necrosis, the bacterial disease wetwood, rots and insect damage.