dicyclanil /daɪˈsɪklənɪl/ noun1 •An insect growth regulator primarily used in veterinary medicine to prevent and control blowfly strike in sheep. It functions by inhibiting the development of fly larvae, thereby reducing infestations.Objective To assess a ready-to-use formulation of dicyclanil to prevent blowfly strike on Merino sheep under Australian conditions. — 1999