biochemical /ˌbaɪəʊˈkɛmɪkəl/adjective 2noun 1forms 1 adjective2 •of, or relating to biochemistry •characterized by, produced by, or involving chemical processes in living organismsIn view of this biochemical diversity, the possibilities of interspecies hybridization in this genus are very interesting and worthy of attention. — 1985 noun1 •A chemical substance derived from a biological source.Dr. Gwaltney sent nasal secretions from 40 volunteers with colds to Dr. Proud and Dr. Naclerio, who tested the secretions for the presence of these biochemicals. — 1987 formsbiochemicals
