Webster’s Revised Unabridged Dictionary · 1913 Vermifugal Ver·mif′u·gal (vẽr·mĭf′ū·gal), a. [L. vermis a worm + fugare to drive away, fr. fugere to flee. See Worm, and Fugitive.] (Med.) Tending to prevent, destroy, or expel, worms or vermin; anthelmintic. ‹ Vermiformia Vermifuge ›