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| Name | Description | Related terms |
|---|---|---|
| xenobiotic chemicals or xenobiotic compounds |
Compounds that are 'foreign' to an organism (eg environmental contaminants, agricultural and veterinary chemical products); human-made substances. |
|
| xylem |
The complex conducting (vascular) tissue in plants by which water and minerals move up the stem from the roots to the leaves. It also furnishes mechanical support to a plant. |