| 释义 |
metamerism|mɛˈtæmərɪz(ə)m|
[Formed as metameric: see -ism.]
1. Chem. The condition of those isomeric compounds, which, although they have the same composition and molecular weight, have different chemical properties.
1848Watts tr. Gmelin's Handbk. Chem. I. 110 Metamerism. This term is applied by Berzelius to the case in which the compound atoms of two chemical compounds containing the same elementary atoms, and for the most part in the same proportions, are nevertheless made up of different proximate elements. 1885I. Remsen Org. Chem. Index.
2. Zool. The condition of consisting of metameric sections; metameric segmentation; also, an instance of this.
1877Ray Lankester in Q. Jrnl. Microsc. Sci. XVII. 427 This latter..breaks up into four circlets by development of cross-pieces in correspondence with a metamerism. |