BIOCIDE Meaning of BIOCIDE in English — biocidal , adj./buy"euh suyd'/ , n.any chemical that destroys life by poisoning, esp. a pesticide, herbicide, or fungicide. [ 1945-50; BIO- + -CIDE ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012