pentamern.
/ˈpɛntəmə/, U.S. /ˈpɛn(t)əmər/ Chemistry.
A polymeric molecule or structural unit consisting of five monomers.
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pentamer1929
pentameride1940
1929 Chem. Abstr. 23 3213 From the MeOH ppt. were obtained another 2 g. of the pentamer and 6, 4, and 6 g. of the hexa-, hepta- and octamers resp.
1955 Jrnl. Polymer Sci. 16 455 The ACA monomer, a considerable part of the linear oligomers up to approximately the pentamer..and a small portion of the sparingly soluble cyclic oligomers dissolve.
1998 Economist 21 Mar. 129/3 Even five molecules linked together—pentamers, as they are called—form a ring-like figure with no depth.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
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