Definition of metameric in English:
1 Zoology Of, relating to, or consisting of several similar segments or somites.
- Indeed, there is: somites in metameric animals usually form sequentially from a posterior growth zone, a process found again in all three branches of the bilaterians.
- The term iteration is used to denote processes that result in both metameric segments and repeated ectodermal skeletal structures.
- Notably, the oldest known Early Cambrian chordate Yunnanozoon had its metameric muscular units located dorsally of the notochord, although its body was laterally compressed.
- Example sentences
- While most vegetative metamers have short internodes, metamers that form at the end of the vegetative phase have elongated ones.
- Although we did not monitor leaf loss, we did not find a differential influence of ozone on internode length and number of metamers, since both of these parameters changed in parallel to shoot length.
- Finally, a linear relationship was established between the total number of extended metamers per branch in year 2 and the number of axillary annual shoots developed from these metamers in year 3.
- Example sentences
- On the other hand, we cannot rule out that full metamerism evolved as a progressively coordinated repetition of organs and intermediate situation can still exist in extant organisms.
- Tagmosis can ultimately lead to the outright fusion of neighbouring segments and the loss of apparent metamerism, as seen for the arthropod head.
- Most provocative of all the Ediacaran forms are those exhibiting real or apparent metamerism.
Definition of metameric in:
- British & World English dictionary
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