n. A hexachætous dipterous insect, as Tabanus bovinus and other species of the family Tabanidæ, of which the females have a piercing proboscis, and are extremely annoying to horses and cattle. Also called breeze, breeze-fly, and gadfly. See cuts under breeze and gadfly.n. A pupiparous dipterous insect of the family Hippoboscidæ; a forest-fly or tick-fly. Also called horse-tick.n. A dichætous dipterous insect of the family Œstridæ; a true bot-fly, as the horse-bot, Gasterophilus equi. See cut under bot-fly.