Definition of octamethylcyclotetrasiloxane in English:
octamethylcyclotetrasiloxane
noun
Chemistry
A colourless oily liquid compound with a cyclic tetrameric structure, [(CH₃)₂SiO]₄, that is an intermediate in the manufacture of many silicones.
Origin
1940s. From octa- + methyl + cyclo- + tetra- + siloxane.
Pronunciation
octamethylcyclotetrasiloxane
/ˌɒktəmɛθʌɪlˌsʌɪkləʊtɛtrasɪˈlɒkseɪn/