metamerism

/muh-tam-uh-riz-uhm/US // məˈtæm əˌrɪz əm //UK // (mɪˈtæməˌrɪzəm) //

变态性,变态主义,变态,变形剂

Definitions

n.名词 noun

1
- : Zoology. division into metameres, the developmental process of somite formation.existence in a metameric state.
- : Chemistry. isomerism resulting from the attachment of different groups to the same atom, as C2H5NHC2H5 and CH3NHC3H7.

The internal organs are largely repeated metamerically, in correspondence with the external metamerism.
In the articulates the metamerism is chiefly external—an articulation of the body wall.
The only other example which we have of this metamerism in the Mollusca is presented by the Chitons.
In Chiton the renal organs are not affected by the metamerism as they are in Nautilus.
In accordance with the metamerism of Nautilus already noticed, there are two pairs of renal organs.