| 单词 |
metaxylem |
| 释义 |
metaxylemenUK
metaxylem (ˌmɛtəˈzaɪlɛm) n (Botany) xylem tissue that consists of rigid thick-walled cells and occurs in parts of the plant that have finished growing. Compare protoxylemmetaxylemenUK
metaxylem[¦med·ə′zī·ləm] (botany) Primary xylem differentiated after and distinguished from protoxylem by thicker tracheids and vessels with pitted or reticulated walls. metaxylemenUK
metaxylem those parts of the xylem tissue of plant roots and stems that are produced last by the cambium, tending to have larger cells than the PROTOXYLEM, the first-formed elements.ThesaurusSeexylem |
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