poly(ethylene glycol) derivative hydroxypolyether poly(ethylene glycol) tergitol A poly(ethylene glycol) derivative that is poly(ethylene glycol) in which one of the terminal hydroxy groups has been converted to the corresponding p-nonylphenyl ether. A polymer consisting of nonylbenzene with a poly(ethylene glycol) moiety attached at position 4. CHEBI:53774 alpha-(4-nonylphenyl)-omega-hydroxypoly(oxyethylene) chebi_ontology